9/18/2009

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The State of the Department

Paul Grannis, Sept. 9, 2003http://sbhep1.physics.sunysb.edu/~grannis/dept.html

Paul Grannis, ChairmanPam Burris, Assistant to Chairman

Laszlo Mihaly, Director of Graduate StudiesPat Peiliker, Assistant Director of Graduate Studies

Department Staff

,

Chris Jacobsen, Director of Undergraduate StudiesElaine Larsen, Assistant Director of Undergraduate Studies

Bob Segnini, Director of Physical LabsRich Berscak, Building Manager

Sara Lutterbie, Business ManagerDi Si l M i OffiDiane Siegel, Main OfficeMaria Hofer, Main Office

Joe Feliciano & Frank Chin, Instructional Labs.Chuck Pancake, Electronics CenterWalter Schmeling, Machine Shop

Sal Natale, Receiving

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Our undergraduate enrollments are up from last year, not just the introductory courses:

AST101 – 141 registered studentsAST105 – 262 registered (Mars closeness caught attention??)AST248 – 230 registered (Life in universe preferred to life on LI?)

Enrollments

AST248 – 230 registered (Life in universe preferred to life on LI?)PHY113 – NEW “Physics of Sport” closed out at 50PHY121 – 351 registered ; PHY122 – 133 registered PHY131 – 302 registered; PHY132 – 91 registered PHY125 – 87 registered

But also our junior level major’s courses:PHY301 – 44 registered (these are unprecedented)PHY303 42 registered PHY303 – 42 registered

Are Physics and Astronomy gaining in popularity? Is there a demographic change in the university? We should view these upturns as an opportunity!

We continue to need to improve in finding opportunities for research projects for undergraduates, and the increased number of majors amplifies this need.

$ $ $ $ $ $ $ $ $ $ $ $ $ $

Budgets

The university budget outlook continues to be poor for the coming year. The New York State economic climate remains bad. It will be a difficult year to advance new initiatives.

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Special colloquiua

1. John Bahcall of the Institute for Advanced Study in Princeton will give the Provost’s Lecture on Thursday Sept. 18 at 4:30PM “How Does the Sun Shine” in the Wang Center.

2. George Whitesides of Harvard will give three special lectures at BNL B k H ll t f t h lBNL Berkner Hall on aspects of nanotechnology:Sept. 22, 5PM “Nanoscience and Nanotechnology”Sept. 23 11AM “Microtools for Biology”Sept. 23 4PM “The Future of Science and Technology”

3. New York State APS Section meeting at BNL Oct. 17-18 with a wide ranging set of talks on Particle, Nuclear, Condensed Matter Physics (including Jacak and Jung of this department)y ( g g p )

Regular Colloquium next Tuesday: David Hafemeister, California Polytechnic Univ. “Arms Treaty Verification”.

John Hobbs and committee are planning a fine slate of talks – be here on Tuesday afternoons !

OutreachThe popular Open Night Friday night series for the general public continues. Deane Peterson and Tom Hemmick are planning a star-studded roster for 2003 – 2004. Friday nights at 7:30 PM (ESS 001)

Astronomy Open Nights Astronomy Open Nights Fall 2003:Jim Lattimer “30 Years of Neutron Star Mergers”

(Sept. 5)

Astronomy Open Night(Sept 5)

Fred Walter: “30 Years since Uhuru: X-Ray Astronomy comes of age” (Oct. 3)

… and more

This is the 20th year anniversary of Astronomy Open Nights

Worlds of Physics Fall 2003

Worlds of Physics

yAxel Drees “Gold Rush on Long Island and the Search for Quark Matter” (Sept. 12)

Hal Metcalf “The Coldest Temperature in the Universe”

(Oct. 10)… and more

Also ‘Geology Open Nights and The Living World series.

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David Fossan died on July 27, 2003. Dave joined the Stony Brook faculty in 1965

News of the faculty

jo ned the Stony Brook faculty n 965 after a postdoc at the Niels Bohr Institute and a research position with Hewlett Packard.

He was a founding member of the Nuclear Structure Laboratory, and his research into nuclei in extreme conditions of deformation and angular momenta were internationally recognizedinternationally recognized.

Dave won the Chancellor’s award for Excellence in Research in 2002.

Emeritus Professor Nandor Balazs died on Aug. 16, 2003. He joined the Stony Brook faculty in 1961, and his breadth of knowledge and eclectic style helped shape the department over four decades. His personal associations with Einstein, Schrödinger, Dirac, Chandrasekhar and Wigner gave Stony Brook a link to these giants of 20th century physics. Nandor officially retired in 1995 but remained an active participant in the department and in physics internationally.

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Luis Orozco has resigned from our faculty as of August 2003 to take up a position at the University of Maryland where he will help lead the establishment of a new atomic physics group. Luis continues as an adjunct professor at Stony Brook and will continue some research activities here.

Norbert Pietralla will join the faculty officially in Norbert Pietralla will join the faculty officially in January 2004. Norbert is a leading expert in nuclear structure studies who has made ground-breaking studies of symmetries and collective states in heavy nuclei. Pietralla holds the prestigious Emmy Noether junior faculty fellowship at Cologne University, and has held a research appointment at Yale.

Welcome back to those who were away last year: Phil Allen, Fred Goldhaber, Janos Kirz, Hal Metcalf, Fred Walter

On leave this year: Dima Averin (fall), Michael Gurvitch (fall), Tom Kuo (fall), Michael Marx, Phil Solomon (fall)

Phil Allen was a Guggenheim Fellow in 2002-3

Gerry Brown won the Wilbur Cross medal of the Yale University Alumni Association

Faculty awards

Association

Bob deZafra was awarded ‘Man of the Year in Civic Affairs’ by the Village Times

Ken Lanzetta was honored for excellence in research by SUNY Chancellor King

Bob McGrath received the Iowa Distinguished Alumni Achievement award

Hal Metcalf was Debye Hoogleraar at the University of Utrecht for spring 2003

Laszlo Mihaly won the Chancellor’s Award for Excellence in Teaching

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Peter Paul was inducted into the Long Island Hall of Fame for his service as interim Director at Brookhaven Lab.

Deane Peterson was named ‘Man of the Year in Science’ by the Village Times

Faculty awards

Deane Peterson was named Man of the Year in Science by the Village Times for his institution of Astronomy Open Nights

George Sterman won the American Physical Society J.J. Sakurai Prize for theoretical particle physics.

Barry McCoy, Kostya Likharev and Edward Shuryak were appointed SUNY Barry McCoy, Kostya Likharev and Edward Shuryak were appointed SUNY Distinguished Professors

New Fellows: Chris Jacobsen in the American Association for the Advancement of Science; Chang Kee Jung, Jack Marburger and Alexei Tsvelik in the APS.

We are delighted with the accomplishments of our graduate students. The prizes for 2003 are an excellent measure of their accomplishments:Di Tian Prize (Asian Student Achievement): Stella Lai-Wa Siu

M D d P i (O t t di Th Th i ) A hi S h k

Graduate student awards

Max Dresden Prize:(Outstanding Theory Thesis): Achim Schwenk

David Fox Prize (Outstanding TA): Matthew Eardley

Peter Kahn Prizes (Travel Awards): Bryan FieldFabio FranchiniXiyue MiaoDavid Shapiro

T A Pond Prize (Comprehensive Exam): Koon Kiu YanT.A. Pond Prize (Comprehensive Exam): Koon-Kiu Yan

Henry Silsbee Prize (Outstanding performance): Ann Sickles

Lee Wilcox Prize: (Outstanding Expt. Thesis): Matthew Malek

Seth Aubin and Carola Berger won the (2 of 5) President’s Award for Distinguished Doctoral students; Takeshi Koike and Joe Reiner received Graduate Council commendations for their thesis research.

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Stony Brook is one of the leading universities in number of Ph.D. degrees granted. This past year has been exceptional.

Aug. and Dec. 2002: (14 degrees)Scott Bogner Univ. Washington postdoc nuclear theoryOlindo Corradini Univ Bologna

Graduate student PhDs awarded

Olindo Corradini Univ. BolognaRuben Costa-Santos Univ. Utrecht postdocJames Dickerson Columbia postdoc → faculty at VanderbiltPietro Faccioli ECT Italy postdocAntonio Garcia-Garcia IN2P3 Orsay France postdocPrasanth Jaikumar McGill Univ. postdocJinyoung Serena Kim Steward Observatory Tucson postdocy g y pBogdan Kulik Max Planck Inst. Berlin postdocYiping Lin Spintronic Research Gp Japan postdocChristopher Mauger Cal Tech postdocAchim Schwenk Ohio State postdocAaron Stein Brookhaven Lab Nanocenter postdocAndrew Steiner Univ. Minnesota postdoc

May and Aug. 2003 (28 degrees) [positions where known (postdocs if not noted) ]

Lilia Anguelova Univ. Michigan Peter Langfelder Univ. Waterloo

Seth Aubin Univ. Toronto Chi-Lun Lee Univ. Massachusetts

Tigran Bacarian Matthew Malek Fermilab

Graduate student PhDs awarded

Carola Berger Univ. Torino Filipe Moura Univ. Amsterdam

Tirthabir Biswas McGill Univ. Joseph Reiner NIST

Fernando Camino Stony Brook Juana Rudati BNL

Javier Cardona Univ. Colombia faculty Kevin Schultz BNL Chemistry

Todd Clatterbuck Raytheon Corp. William Sherry Stony Brook

Ashfia Huq Argonne Lab Wade SmithAshfia Huq Argonne Lab Wade Smith

Alberto Iglesias New York Univ. Natasa Stojic Trieste

Jiangyong Jia Columbia Univ. Corrie Vaa

Daniel Kaplan Intel Corp. Keith Welsh Rad. Oncology SB

Bertram Klein Univ. Heidelberg John Wilson Univ. N. Carolina

Takeshi Koike Stony Brook Gabor Zala

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Bandres Miguel Mexico ITESMBaumer Florian Germany Wϋrzburg UniversityBochmann Joerg Germany Wϋrzburg UniversityDa Silva Tiago Portugal Technical Univ. of LisbonDahms Torsten Germany Wϋrzburg UniversityEmerson Nathan US Union CollegeFleckenstein Holger Germany Stony Brook Fl k l f d

Incoming graduate students

Flickinger Daniel US Stanford Hammons Lee US Stony Brook Herner Kenneth US Notre DameHuang Xiaojing China Fudan UniversityHuang Yu-tin China National Taiwan UniversityKiermaier Michael Germany University MunchenKinoshita Megumi Japan City College of New YorkLange Almar Germany Wϋrzburg UniversityLanghojer Florian Germany Wϋrzburg UniversityMcCumber Michael US University of Arizona McCumber Michael US University of Arizona Meltzer Jory US Stony Brook Nichols Sarah US Williams CollegeSchmidt Christian Germany Wϋrzburg UniversityStroud Nicholas US Univ. of WisconsinVavilkin Tatjana Germany University of BonnYu Jie China Nanjing University

Sun Tao China Tsinghua University

Undergrad degrees May/August 2003 (where did they go? Over ½ to grad school)

Michael Adler grad school in springDoug Broege Univ. of Michigan physics

Undergraduate Degrees

g g g p yMatthew Bubelink Univ. Central FloridaJennifer Cameron high school teachingConstantinos Constantinou Penn State Univ.Tara Falcone Masters in Teaching/Stony BrookEvan Guarnaccia Univ. KansasCorrine Lamb Johns Hopkins Univ.Jiann Lee Marketing/education companyg p yVincent Lore Rennsaleer Polytechnical Univ.Jose Mawyin grad school in springJory Meltzer grad student Stony BrookFouad Nasraddine CUNY Atmospheric scienceGurpreet Singh SUNY Downstate MedicalChris Werth Collider Accelerator Dept/ BNL

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Daniel Dasilva (12/02) is in the School of Optics, Univ. of Arizona

Robert Wlodarczyk (5/02) won Microsoft’s 2003 Imagine Cup Programming Competition and went to the world championship where he

News of other recent BS graduates

Programming Competition and went to the world championship where he placed fourth. He has accepted a full time position with Microsoft

Brian Levine (5/02) Teaching gifted high school students in NY City

Keith Carney (1998) Res. Assistant, Geophysical Institute, Univ. Alaska

Michael Daffner (2000) Satellite controller with Sirius Satellite Radio

Chris Jacobsen was honored as the Best Teacher by the graduating seniors

Teacher of the year

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The former Math, Physics & Astronomy Library was rededicated today

“The Peter B. Kahn Library of Mathematics, Physics and Astronomy is named to commemorate Peter’s many contributions to the library, his belief in the power of books to transform y, plives, and his generosity to those who have studied here.”

The bequest by the Simons Foundation will be used this year to sponsor two special lecturers who will visit the department for a week or more and give a combination of colloquium and seminar level talks. The lecturers will also be available for discussions and interactions with students and faculty

Simons Lecturers

students and faculty.

Lecturers were chosen to present recent advances of physics and astronomy, and to represent theoretical fields not strongly represented at Stony Brook.

David Spergel of Princeton University will bring news of the recent WMAP satellite measurements (and other experiments) of cosmological parameters He will visit for the week of March 15 19 (Host: Michal parameters. He will visit for the week of March 15-19. (Host: Michal Simon)

Henk Stoof of the University of Utrecht will discuss theoretical aspects of Bose Einstein condensation. His visit will span several weeks starting in mid-April. (Host: Hal Metcalf)

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PHYSICS AND MATH BUILDING MASONRY REPAIR STATUS:

Current Project Status:Masonry probes were performed in March 2003 to determine the condition

The building

Masonry probes were performed in March 2003 to determine the condition of the masonry facade, corner soldier brick courses, masonry column enclosures, and relieving angle structures by all the windows.

Scope of Work for the masonry repairs are defined. Budgetary Cost estimates for masonry repair and new roof were completed: $1.86M

A project start date has not been scheduled because the NYS Legislature has not allocated a “Capital Budget” for any state universities or colleges.p g y g

The good news is that when the Capital Budget is finally allocated by the State Legislature, The Physics and Math Building is at the top of the list. A Scope of Work and cost estimate has been completed, and the project is ready for “engineering design.”

WATER LEAKS: (Big problems over the summer)

Most of the perimeter of the roof mechanical room has been sealed against water penetrations due to rain. The Mechanical room rain scuppers and downspouts have been repaired to eliminate water leaks from the roof. However, the cooling coil condensate trays for AC-1 and

The building

AC-2 cannot be relined and waterproofed until the cooling season is over, and the air handlers can be shut down and condensate trays drained. In addition, two mechanical room floor drain plumbing lines will be repaired during the shutdown.

On the roof In the building

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Retrofit of building air handler fan drives: SEMPRA Energy Corp. is completing the engineering design and bid process for computerized energy-efficient control of all campus HVAC climate control systems. The first phase will be approximately a $25M contract to install energy efficient air supply and return fan motors. Estimated to begin in January 04.

The building

Calpine COGEN Partners: Construction plans for a new 79 MWatt generating plant was reviewed by the SUNY Board of Trustees. The project has been cancelled due to space, building, and noise restrictions. Our current campus electrical power distribution system maxed out at 40 MWatts.

Blackout of Aug. 14: Emergency generator regulator failed; this resulted in damage to our fire alarm electronics panel. The system is now back up and operating but backup systems are not yet in place.

Projects ongoing:Repairs to fire alarm system, emergency generatorTelescope dome on ESS roofGraduate student office furniture replacementUndergraduate laboratory chairs replacement

Shipment arrived today!

What I will show is only the tip of the iceberg. My thanks for all the input, and apologies for not giving all the lovely advances of the past year the full attention (or understanding) they deserve.

Research highlights of the past year

Phys/Astro merger

Physical Sciences and Math research expenditures Physics and Astronomy ~ $13M (14th in the nation); highest in the university

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C.N. YANG ITP

• SUSY, STRINGS Covariant Quantization of Strings; Geometry and String Theory; M. Rocek, P.

A Selection:

Virial Coefficients in Liquids; N. Clisby &B.McCoy; Number Theory & Solvable Models,V. Korepin

Global fits for neutrinos, Neutrinos and

de Sitter Space L. Anguelova, P.LangfelderP.J. de Smet

• INTEGRABLE MODELS IN STAT MECH, QUANTUM COMPUTING

• NEUTRINOS, QCD, HIGGS & BEYOND THE STANDARD MODEL

Grassi & P.van Nieuwenhuizen; Bound-state Gravity, W. Siegel & K.-Y. Lee

QCD Radiation, C.Berger*, T.. Kucs, G. Sterman, Higgs Cross Sections, B. Field, J. SmithGlueball dynamics, A. Goldhaber

f f ,Solar Dynamics, C. Gonzalez-Garcia , Neutrinos, symmetry breaking,R. Shrock, N. Christenson

*President’s Thesis Award, 2003 Students

STANDARD MODEL

Simons Workshops on Mathematics and Physics (First of five summer workshops at the intersection of mathematics and physics in string theory and integrable models

Other recent C fConferences:Neutrinos,Supergravity,Quantum Computing(with P&A, Math, IMS)

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$50M KOPIO experiment to measure CP violation in KL → π0 ν ν at Brookhaven was approved by NSF and Congress with Mike Marx as Project Manager. The KOPIO summer interns made a game to recognize the nifty events in real time. (http://www.phy.bnl.gov/~millerc/KOPhome.html)

The Aliens have already defeated us in Chinese Checkers, arm wrestling (Props to the ripped Zriged), and l f H thli h d t d th i ti t t lti t f i b d b d i t N it

“Within the last few milli-seconds, Earth has been threatened by a group of evil Alien physicists and only you (yes, I'm speaking to you) can stop their evil plot of world domination. As a sign of their fairness, they offer us a "best of out of seven competition," to decide our fate. If we win, the Aliens will halt their assault on Earth and offer us the highly coveted secret of making 20 minute brownies in 15 minutes. However, if we lose, they plan to do something really, really, really evil and bad like...so evil that it would make evil people seem less eviler.

leap frog. However, we earthlings have destroyed them in tic-tac-toe, ultimate-frisbee, and badminton. Now, it comes down to the tie-breaker and you have been chosen. The category that you have selected is Quantum Nonlinear Higher-Dimensional Theoretical Mathematics.

After five grueling hours, the final score is 10,832 to -3, and it's not in your favor. In other words, you LOST!!!! Good going, Einstein. The earth has been doomed because of your failure. Then, a minute later, you begin to cry (you big baby). The Aliens look upon thee, and decide to give you a second chance, while laughing at your pitiful self. They decide on this game....if you feel bold,

press the "Enter" button to save the world. ”

Nucleon decay and Neutrino GroupSuperK-II: Detector reconstruction complete, taking data

Papers written/edited by the Stony Brook group in 2002: SuperK Detector NIM paperSupernova Relic Neutrino search PRL paper (M.Malek PhD)

Chang Kee Jung, Clark McGrew, C.Yanagisawa

UNO: 13 times larger than SuperKHEPAP Facilities Committee Report: Mar. 2003

Rated Scientific Potential of UNO “Absolutely Central”

⇒ Ready to submit “planning” proposal

K2K-I:First successful long baseline (250km) neutrino oscillation experiment

JHFnu: 50 times more powerful than K2K

⇒ Observes neutrino oscillation ~3σ level⇒ Confirms SuperK atm neutrino results

⇒ Look for νe appearance, measure sin2θ13

⇒ precision measurement of sin2θ23 and Δm232

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Bs -> μμ

DØ ExperimentNew tracker working very well – Si μstrip and Scint. fiber. See ω, φ, J/ψ, ψ’, Υ, Z → μμ with excellent resolution.

J. Hobbs, R. McCarthy, M. Rijssenbeek, P. Grannis

Higgs -> WW search

John Hobbs led the Higgs group; new best limit on H→ WW; nearing prediction of some models

Luminosity now well above Run I

Run I

DØ ExperimentSearch for exotic H++ (grad student Marian Zdrazil)

B+ lifetime measurement (postdoc Wendy Taylor). Competitive with previous world datap

Limit set at MH++> 115 GeV – best in world

e

New DØ measurement of top quark pair cross section at 2 TeV.

μj1

j2

Top quark candidate

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Computational Astrophysics AchievementsComputational Astrophysics Achievements(Lattimer, Prakash, Swesty, Wijers)(Lattimer, Prakash, Swesty, Wijers)

• Developed next-generation 2-D supernova explosion model on 6000 processor IBM SP @ LBNL (largest unclassified machine in US!)unclassified machine in US!)

• New model for predicting supernova and proto-neutron star neutrino signals

• Carried out first multi-dimensional model of Gamma ray burst shock interactions

• Developed new technique for solving Boltzmann equation on adaptively refined meshes (allows simulation of multi-scale radiation-hydrodynamic phenomena)

• Established a Beowulf cluster in ESS for code development & data analysis

The SMARTs telescopes at Cerro Tololo

Stony Brook, Yale, American Museum of Natural History, Ohio State, Johns Hopkins and Georgia State formed a consortium to operate three 1 meter class telescopes. Stony Brook has rights for about 100 nights of observations. Stony Brook effort led by Fred Walter and Mike Simon.

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This data was analyzed by V. Lore (USB 2003) as part of an AST487 senior research project and A. Nencke, an REU visiting student in summer 2003.

Deane Peterson has used optical interferometry to deduce the oblateness of hot, rapidly spinning stars, near the breakup angular velocity.

Data are consistent with gravitationally induced surface brightnesses and further brightnesses and further measurements will test the 1924 theory.

These are the first measurements of the orientation of rotation axes of an individual star other than the sun.

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Aaron Evans, Phil Solomon have studied ultra luminous infrared galaxies [ULIGs] which are high red shift objects with the IR luminosity comparable to that of quasars.

Evans et al. data:

HST optical image

ULIGs are massive galaxies in the making with O(102) ordinary star formation rates. They are probably Quasars in formation, with gas feeding the supermassive black holes.

The recently launched Space Infrared Telescope Facility will examine these objects in much more detail.

False color IR images with molecular gas contours

Visiting Professor Paul Hickson has recently operated the LZT 6 m liquid mercury telescope near Vancouver and obtained FWHM image resolution of 3 arc sec. Improvements to the mirror can bring this down to the target 1 – 1.5 bring this down to the target 1 1.5 arc sec.

LZT is a prototype for the LAMA array led LZT is a prototype for the LAMA array, led by Ken Lanzetta of 18 such liquid mirrors of 8-10 m diameter, whose equivalent light gathering is that of a 40 m diameter single mirror! LAMA is presently in its Phase 0, leading to a Conceptual Design Report for external review at the beginning of 2004.

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Jet Quenching at RHIC in Au+Au

Alternative explanations of jet quenching:

• Final state energy loss:

Ph.D. Thesis J.Jia 8/03; nucl-ex/0308006 → PRC

Nuclear Modification Factor:

( ) ppAAAA T

Tcoll T

ddR pdp dN dp d

σση η

=221

Axel Drees, Tom Hemmick, Barbara Jacak

gluon bremsstrahlung

• Initial state saturation of gluon distribution

PHENIX Au-Au at √sNN = 200 GeV

Suppression by factor ~5gluon distribution “color glass condensate”

Jet quenching well established

xG(x,Q2)

QSx

Control Experiment d-Au in Spring 2003Au + Au Experiment d+Au Control Experiment

Preliminary Datanucl-ex/0308006

d-Au experiment:

Initial state effects present in Au nucleus

Reaction volume to small for jet absorption

Different and opposite centrality evolution of Au+Au experiment from d+Au control

y

Jet suppression is clearly a final state effect

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Chirality discovery with GAMMASPHERE before HULKHULK

C.Vaman et al.,

104RhD. Fossan, K. Starosta, T. Koike et al. showed the existance of chiral pairs of nuclear states – nearly symmetric left-nuclear states nearly symmetric leftand right-handed pairs.

David Fossan and Kris Starosta conducted experiments at the Gammasphere for the past 8 years.

This year, the movie ‘The Incredible Hulk’ featured Gammasphere as the cause of Dr. David Banner’s transformation into the Hulk, and the object of Hulk’s rage. Hollywood made a $1M replica of made a $1M replica of the $25M detector.

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Gerry Brown, Edward Shuryak, Jac Verbaarschot, Ismail Zahed

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Subsequent elaboration of this ‘sticky molasses’ idea by Brown, Lee, Rho and Shuryak

Sasha Abanov also studies topological th d i th f l di i l l t

Condensed matter theoryPhil Allen and Sasha Abanov work with their colleagues on electrical polarity in ferro-and antiferroelectrics and applications to nanosystems.

methods in theory of low-dimensional electron systems.

axon

reservoir 1

probe 1

reservoir 2

probe 2

box 2 box 1

couplingisland

aSelected Publications

Y. Lin, E. E. Mendez, and A. G. Abanov, Phys. Rev. B 66, 195311 (2002) Tunneling Characteristics of an Electron-Hole Trilayer in a Parallel Magnetic Field.A.G. Abanov and V. E. Korepin, Nucl. Phys. B 647 [FS], 565 (2002)On the probability of ferromagnetic strings in antiferromagnetic spin dendritedc gate 2 dc gate 11 mμ

Vg2 Vg1

Vb1Vb2

E , CJ2 J2 E , CJ1 J1

Vp

Cb1Cb2

Cp Cp

Cm

Cg1Cg2

pulse gate

b Dima Averin works on theory of solid state quantum computation and mesoscopic quantum measurements. Last year, he collaborated with a group at NEC in the first demonstration of quantum coherent dynamics of two coupled Josephson-junction qubits.

Yu.A. Pashkin et al., Nature 421, 823 (2003).

On the probability of ferromagnetic strings in antiferromagnetic spin chains.

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Motivation:

axon

NEUROMORPHIC NETWORKS BASED ON HYBRID CMOS/MOLECULAR CIRCUITS

W. Chen, E. Cimpoiasu, K. Likharev, X. Liu, J. Lukens, A. Mayr (Chemistry), I. Muckra, Ö. Türel

Cerebral Cortex: ~107 neural cells/cm2

~1011 synapses/cm2

Basic Idea:

dendritesynapse

(a major challenge!)

gold wire from cell j

thiol group as an alligator clip

S

OPE bridge as a tunnel junction

Current Research Issues:

CrossNet Circuits:-1012 synapses/cm2

- speed x105 of bio(estimates)

gold nanowires

longer bridge as an insulator/capacitor

diimide acceptor as an island

gold wire to cell j’

single-electron transistor

single-electron trap

S

N

NO

O

O

O

O

O

S

N

N

O O

O O

N

N

O O

O O

O

O

S

Current Research Issues: - experimental implementation

and characterization of molecular synapses

- CrossNet architecture development and training (on numerical models, using supercomputer cluster Njal)

Si substrate

SOI MOSFET

CMOS wiring

SiO2 insulation

CMOS--to-MOL

plug CMOSplug

Condensed matter experiment investigations of Vladimir Goldman, Emilio Mendez, Laszlo Mihaly, Peter Stephens examine a wide range of systems on campus and at the BNL light source.

IR studies of strong electron correlations

Quantum dots

Fullerenes

Semiconductor microcavitiesλ / 2 C a v i t y

Ga As /Al Ga As Superlattice

p-type Al As/AlGaASRight mirror

n-type Al As/AlGaAS Left mirror

Semiconductor microcavities

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MANIPULATING ATOMS WITH THE BICHROMATIC FORCEMANIPULATING ATOMS WITH THE BICHROMATIC FORCEWhy the bichromatic force (2 lasers at different ν) ???

It’s HUGE, and it spans a HUGE velocity range!!!

VELOCITY SPACE MAP

Hal Metcalf

40

60

80

100

The arrow shows the force direction, and thus the velocity change. The plots are on the same scale.

-20

0

20

0 100 200 300 400 500

20

0 100 200 300 400 50

The left shows the result of the ordinaryoptical force used for laser cooling for thepast 20 years. It moves atoms from onesmall region of velocity space to anotherclose by. The plot is a line-out of intensity.

The right side shows that the bichromaticforce collects atoms from a MUCH largerregion of velocity space (dark area) and alsomoves them by a MUCH larger amount(brightness), indicating a MUCH larger force.

Rb 5S + Cs 6P

PA

Molecular manipulations: Cold molecule production through Photoassociation and Controlled photodissociation through pulse shaping

CH3+ Tom Weinacht

Rb 5S + Cs 6S

Ramantransfer?

molecules have sametranslational temperature

as atoms

CH3CO+

Tom Bergeman

• Predictions of interesting properties for a Bose condensate of polar species.

• Vibrationally excited Rb Cs molecules trapped in wells; E field gradient allows addressing individual sites so each molecule is a cubit

• Possible system for quantum computation.

• Fragmentation of CH3-CO-CH3 molecule depends on laser pulse shape.

• Can discover optimal pulse shapes for selective fragmentation using feedback

fragment mass →

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X-ray optics & microscopy• Group of Jacobsen and Kirz: physics of x-ray optics and microscopy,

and applications in biology and environmental science.• Undulator beamlines at NSLS, NSF Center for Environmental Science,

BNL Center for Functional Nanomaterials. Funding: NSF, NIH, NASA.• Two examples shown below – more is going on in the group!

Spectromicroscopy:• X-ray absorption edges have near-edge

resonances which indicate chemical binding state

• Chemical speciation at 40 nm resolution! Complexity is sorted outusing cluster analysis.

• Environmental science: look at metal, radionuclide uptake and transport in groundwater colloidsgroundwater colloids

• Astrobiology: amino acids in interplanetary dust particles?

• Biology: correlate morphology with chemistry to guide selection of sperm for in-vitro fertilizationThis example: H. Fleckenstein, M. Lerotic. Purple: DNA. Brown: flagellar motor. Yellow: lipids. Red: mitochondria.

Diffraction/diffraction tomography: 3D imaging at and beyond lens limit. This image: diffraction pattern of one yeast cell. D. Shapiro, E. Lima (plus T. Beetz diffraction tomography).

A wealth of exciting physics and astronomy has emerged A wealth of exciting physics and astronomy has emerged your work over the past year.

The students, research associates and faculty at Stony Brook are recognized as being at the leading edge in many of the most important areas of science.

We welcome the new students to our community, and

Reception outside the Department Office (in the keg circle) follows !

We welcome the new students to our community, and wish them every success in even more exciting enterprises to come.