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Geometry and Quantum Mechanics Spinor Coordinates Two or more Electrons Pauli’s Exclusion Principle in Spinor Coordinate Space Daniel Galehouse University of Akron Theoretical and Experimental aspects of the Spin Statistics connections and related symmetries, 2008 D. Galehouse [email protected] PEP in spinor space

Pauli's Exclusion Principle in Spinor Coordinate Space

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Page 1: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Pauli’s Exclusion Principle in SpinorCoordinate Space

Daniel Galehouse

University of Akron

Theoretical and Experimental aspects of the Spin Statisticsconnections and related symmetries, 2008

D. Galehouse [email protected] PEP in spinor space

Page 2: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Outline

1 Geometry and Quantum Mechanics

2 Spinor Coordinates

3 Two or more Electrons

D. Galehouse [email protected] PEP in spinor space

Page 3: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

The problem of derivatives.

Matrix mechanics

pq − qp = −i~

Wave mechanics

∂qq − q

∂q= 1

General relativity

DjΦi = Φi

;j =∂Φi

∂x j + ΓijkΦk

D. Galehouse [email protected] PEP in spinor space

Page 4: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Conformal waves

Wave equations from the Riemann tensor.

Let the conformal factor be Ψp with p = 4/(n − 2).

Ψ obeys a linear wave equation in n dimensions.

∂2ψ

∂xa∂xa= R = 0

D. Galehouse [email protected] PEP in spinor space

Page 5: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Quantum field equation.

In five dimensions.

1√

−g(i~

∂xµ− eAµ)

−ggµν(i~∂

∂xν− eAν)ψ =

[m2 +3

16(R − e2

4m2 FαβFαβ)]ψ

D. Galehouse [email protected] PEP in spinor space

Page 6: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Interaction mechanism

Conformal mediation

Rij(ωγmn) = 0 → Rij(γ

mn) = Tij

Gravitational source equations

Rαβ = 8πκ[

FαµFµβ+m|ψ|2 e2

m2 AαAβ+m|ψ|2 1−(e2/m2)A2

2−(e2/m2)A2 gαβ

]

Electromagnetic source equation

Fβµ|µ = 4πe|ψ|2Aβ

D. Galehouse [email protected] PEP in spinor space

Page 7: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Second quantization of photons and gravitons

Aµ = Aµ(ret.) + Aµ(adv.)

D. Galehouse [email protected] PEP in spinor space

Page 8: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Second quantization of electrons

Specific heat of a monatomic gas, spectroscopy

{bα,bα′} = 0

{bα,b†α′} = δαα′

{b†α,b

†α′} = 0

D. Galehouse [email protected] PEP in spinor space

Page 9: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Local definition of spinor coordinates.

ξA = ξAr + iξA

i , ξA = ξAr − iξA

i , A = 1 · · ·4

ǫAB = ǫAB = diag(1,1,−1,−1)

dxm = ζAγm BA dξCǫCB + dξAγmB

AζCǫCB ≡ ζγmdξ† + dξγ†mζ†

D. Galehouse [email protected] PEP in spinor space

Page 10: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Conformal Waves in spinor space

Using, for the Dirac wave function,

ΨB =∂Ψ

∂ξB

if Ψ is a function in extended space-time, the conformal wave

0 = Ψ ≡ ǫAB ∂

∂ξA

∂ξB Ψ ≡ ǫAB ∂ΨB

∂ξA

gives according to the chain rule, the Dirac equation

ζD[

γm BD

∂ΨB

∂xm

]

= 0

D. Galehouse [email protected] PEP in spinor space

Page 11: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Local Dirac electron

A plane wave in five space

Ψ = ei(~k~x−ωt−mτ) ≡ eikmxm, km = (~k , ω,m)

becomes after differentiation in spinor space

ΨA ≡∂Ψ

∂ξA = Ψikm∂xm

∂ξA ⇒

iΨkmγ†mζ† = iΨ

k0 0 im − k3 −k1 + ik2

0 k0 −k1 − ik2 im + k3

im + k3 k1 − ik2 −k0 0k1 + ik2 im − k3 0 −k0

ζ†

D. Galehouse [email protected] PEP in spinor space

Page 12: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Transformation theory of interaction

12{γm, γn} ≡

12(γmγn + γnγm) =

γmn ≡

(

gµν −AµAν −Aµ

−Aν −1

)

D. Galehouse [email protected] PEP in spinor space

Page 13: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

An identified pair

e−

e−

e− e−

e−

e−

e−e− e−

e−

e−

e−

e+e+e+

e−

e−

D. Galehouse [email protected] PEP in spinor space

Page 14: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Parallel electrons

4−D 8−D

D. Galehouse [email protected] PEP in spinor space

Page 15: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Anti-parallel electrons

4−D

4−D

8−D

8−D

D. Galehouse [email protected] PEP in spinor space

Page 16: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Spinor wave propagation

1 2

21

1 2

D. Galehouse [email protected] PEP in spinor space

Page 17: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Boundary development

1 2

21

++

− −

Standard boundary condi-tons:

ψ′(1) = a[ψ(1) − ψ(2)]

ψ′(2) = a[ψ(2) − ψ(1)]

Spinor coordinate boundarycondition:

ΨA =∂Ψ

∂ξA

Ψ = 0

D. Galehouse [email protected] PEP in spinor space

Page 18: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Multiple electrons in spinor space

D. Galehouse [email protected] PEP in spinor space

Page 19: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Multiple electrons in spinor space

D. Galehouse [email protected] PEP in spinor space

Page 20: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Ongoing considerations

Questions and problemsCalculational advantagesRelativistic formalism, Feynman exchangeInterparticle interaction/self-interactionOperatorsOther FermionsDirac-Thirring paradox, rotation in G.R.Newton’s bucketAharonov-Casher

D. Galehouse [email protected] PEP in spinor space

Page 21: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

Geometry of the Pauli Equivalence Principle

The geometrical description of fundamental physics.

The natural relevance of spinor coordiantes for electrons.

The elementary description of the Pauli equivalenceprinciple as a property of differential equations.

D. Galehouse [email protected] PEP in spinor space

Page 22: Pauli's Exclusion Principle in Spinor Coordinate Space

Geometry and Quantum MechanicsSpinor Coordinates

Two or more Electrons

References

D. Galehouse, The Geometry of Quantum Mechanics,in preparation.

D. Galehouse, J. Phys., 2(1):50–100, 2000.Conf. Ser. Vol 33, 411-416at www.iop.org/EJ/toc/1742-6596/33/1

D. Galehouse [email protected] PEP in spinor space