Ion trap simulations of quantum fields in an expanding universe.
Ion trap simulations of quantum fields in an expanding universe.
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DOI:
10.1103/physrevlett.94.220401
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发表时间:
2005-06
影响因子:
8.6
通讯作者:
P. Alsing;J. Dowling;G. Milburn
中科院分区:
文献类型:
--
作者:
P. Alsing;J. Dowling;G. Milburn
We propose an experiment in which the phonon excitation of ion(s) in a trap, with a trap frequency exponentially modulated at rate kappa, exhibits a thermal spectrum with an "Unruh" temperature given by k(B)T=Planck kappa. We discuss the similarities of this experiment to the response of detectors in a de Sitter universe and the usual Unruh effect for uniformly accelerated detectors. We demonstrate a new Unruh effect for detectors that respond to antinormally ordered moments using the ion's first blue sideband transition.