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Looking for traces of Hawking radiation in correlation functions of BEC acoustic black holes

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arxiv 2410.02700 v2 pith:VWTRFMWE submitted 2024-10-03 gr-qc cond-mat.quant-gashep-th

classification gr-qccond-mat.quant-gashep-th
keywords radiationacousticblackcorrelationfunctionshawkinganalogueappearing
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Renaud Parentani was one of the leading figures in Quantum Field Theory in curved spacetime, in particular concerning its applications to Hawking-like radiation in analogue models. In this paper dedicated to him, we discuss the characteristic features appearing in the correlation functions in an acoustic black hole formed by a Bose-Einstein condensate, considered as signature of the presence of Hawking radiation in this system.

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  1. Non-local correlations of a test quantum field in gravitational collapse

    gr-qc 2025-05 conditional novelty 6.0 of 10

    Equal-time vacuum correlations of a test quantum field on a dynamically collapsing, horizon-forming spacetime develop non-local peaks across the apparent horizon, and the outside peak moves away from the horizon over time.

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