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Uniformly accelerated observer in Moyal spacetime

Acharyya, Nirmalendu and Vaidya, Sachindeo (2010) Uniformly accelerated observer in Moyal spacetime. In: Journal of High Energy Physics, 45 (9). pp. 1-20.

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Abstract

In Minkowski space, an accelerated reference frame may be defined as one that is related to an inertial frame by a sequence of instantaneous Lorentz transformations. Such an accelerated observer sees a causal horizon, and the quantum vacuum of the inertial observer appears thermal to the accelerated observer, also known as the Unruh effect. We argue that an accelerating frame may be similarly defined (i.e. as a sequence of instantaneous Lorentz transformations) in noncommutative Moyal spacetime, and discuss the twisted quantum field theory appropriate for such an accelerated observer. Our analysis shows that there are several new features in the case of noncommutative spacetime: chiral massless fields in (1 + 1) dimensions have a qualitatively different behavior compared to massive fields. In addition, the vacuum of the inertial observer is no longer an equilibrium thermal state of the accelerating observer, and the Bose-Einstein distribution acquires.-dependent corrections.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: Non-Commutative Geometry; Thermal Field Theory; Space-Time Symmetries
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 29 Nov 2010 11:07
Last Modified: 24 Feb 2012 07:29
URI: http://eprints.iisc.ernet.in/id/eprint/34068

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