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BRST symmetry: Boundary conditions and edge states in QED

Acharyya, Nirmalendu and Balachandran, A P and Diez, Veronica Errasti and Subramanian, Bala P N and Vaidya, Sachindeo (2016) BRST symmetry: Boundary conditions and edge states in QED. In: PHYSICAL REVIEW D, 94 (8).

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Official URL: http://dx.doi.org/10.1103/PhysRevD.94.085026

Abstract

In manifolds with spatial boundary, BRST formalism can be used to quantize gauge theories. We show that, in a U(1) gauge theory, only a subset of all the boundary conditions allowed by the self-adjointness of the Hamiltonian preserves BRST symmetry. Hence, the theory can be quantized using BRST formalism only when that subset of boundary conditions is considered. We also show that for such boundary conditions, there exist fermionic states which are localized near the boundary.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to theAMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 31 Jan 2017 05:12
Last Modified: 31 Jan 2017 05:12
URI: http://eprints.iisc.ernet.in/id/eprint/55980

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