Quantum Fluctuations and the Unruh effect in strongly-coupled conformal field theories

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Show simple item record Caceres, E Chernicoff, M Guijosa, A Pedraza, JF 2011-01-21T10:35:27Z 2011-01-21T10:35:27Z 2010
dc.identifier.issn 1126-6708
dc.identifier.uri http://hdlhandlenet/123456789/275
dc.description.abstract Through the AdS/CFT correspondence, we study a uniformly accelerated quark in the vacuum of strongly-coupled conformal field theories in various dimensions, and determine the resulting stochastic fluctuations of the quark trajectory. From the perspective of an inertial observer, these are quantum fluctuations induced by the gluonic radiation emitted by the accelerated quark. From the point of view of the quark itself, they originate from the thermal medium predicted by the Unruh effect. We scrutinize the relation between these two descriptions in the gravity side of the correspondence, and show in particular that upon transforming the conformal field theory from Rindler space to the open Einstein universe, the acceleration horizon disappears from the boundary theory but is preserved in the bulk. This transformation allows us to directly connect our calculation of radiation-induced fluctuations in vacuum with the analysis by de Boer et al. of the Brownian motion of a quark that is on average static within a thermal medium. Combining this same bulk transformation with previous results of Emparan, we are also able to compute the stress-energy tensor of the Unruh thermal medium. en_US
dc.language.iso en en_US
dc.title Quantum Fluctuations and the Unruh effect in strongly-coupled conformal field theories en_US
dc.type Article en_US
dc.identifier.idprometeo 158
dc.identifier.doi 10.1007/JHEP06(2010)078
dc.source.novolpages -6
dc.subject.wos Physics, Particles & Fields
dc.description.index WoS: SCI, SSCI o AHCI
dc.subject.keywords AdS-CFT Correspondence
dc.subject.keywords Gauge-gravity correspondence
dc.subject.keywords D-branes
dc.subject.keywords Quantum Dissipative Systems
dc.relation.journal Journal of High Energy Physics

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