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Twisted duality of the CAR algebra

Jun, 1999

29 pages

Published in:

J.Math.Phys. 43 (2002) 4158-4179

e-Print:

math-ph/0204029 [math-ph]

DOI:

10.1063/1.1483376

Report number:

SFB-288-401

View in:

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Abstract: (AIP)

We give a complete proof of the twisted duality property M ( q ) ′ =Z̃ M ( q ⊥ )Z̃ * of the (self-dual) CAR-Algebra in any Fock representation. The proof is based on the natural Halmos decomposition of the (reference) Hilbert space when two suitable closed subspaces have been distinguished. We use modular theory and techniques developed by Kato concerning pairs of projections in some essential steps of the proof. As a byproduct of the proof we obtain an explicit and simple formula for the graph of the modular operator. This formula can be also applied to fermionic free nets, hence giving a formula of the modular operator for any double cone.

References(22)

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