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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
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
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
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
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
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
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
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
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
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
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
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
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
Geometry and Quantum MechanicsSpinor Coordinates
Two or more Electrons
Parallel electrons
4−D 8−D
D. Galehouse [email protected] PEP in spinor 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
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
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
Geometry and Quantum MechanicsSpinor Coordinates
Two or more Electrons
Multiple electrons in spinor space
D. Galehouse [email protected] PEP in spinor space
Geometry and Quantum MechanicsSpinor Coordinates
Two or more Electrons
Multiple electrons in spinor space
D. Galehouse [email protected] PEP in spinor 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
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
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