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  Abelian gerbes as a gauge theory of quantum mechanics on phase space

Isidro, J. M., & de Gosson, M. A. (2007). Abelian gerbes as a gauge theory of quantum mechanics on phase space. Journal of Physics A, 40(13), 3549-3567. doi:10.1088/1751-8113/40/13/016.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4865-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4866-5
Genre: Journal Article

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 Creators:
Isidro, Jose M.1, Author
de Gosson, M. A.1, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: We construct a U(1) gerbe with a connection over a finite-dimensional, classical phase space {\bb P} . The connection is given by a triple of forms A, B, H: a potential 1-form A, a Neveu–Schwarz potential 2-form B, and a field-strength 3-form H = dB. All three of them are defined exclusively in terms of elements already present in {\bb P} , the only external input being Planck's constant planck. U(1) gauge transformations acting on the triple A, B, H are also defined, parametrized either by a 0-form or by a 1-form. While H remains gauge invariant in all cases, quantumness versus classicality appears as a choice of 0-form gauge for the 1-form A. The fact that [H]/2πi is an integral class in de Rham cohomology is related to the discretization of symplectic area on {\bb P} . This is an equivalent, coordinate-free reexpression of Heisenberg's uncertainty principle. A choice of 1-form gauge for the 2-form B relates our construction to generalized complex structures on classical phase space. Altogether this allows one to interpret the quantum mechanics corresponding to {\bb P} as an Abelian gauge theory.

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 Dates: 2007-03-30
 Publication Status: Published in print
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 Identifiers: eDoc: 334884
ISI: 000245037900017
DOI: 10.1088/1751-8113/40/13/016
Other: arXiv:hep-th/0608087
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Title: Journal of Physics A
Source Genre: Journal
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Pages: - Volume / Issue: 40 (13) Sequence Number: - Start / End Page: 3549 - 3567 Identifier: ISSN: 1751-8113