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Open Quantum Systems Decoherence

Analogue of cosmological particle creation in an ion trap

arXiv
Authors: Ralf Schützhold, Michael Uhlmann, Lutz Petersen, Hector Schmitz, Axel Friedenauer, Tobias Schätz

Year

2007

Paper ID

50173

Status

Preprint

Abstract Read

~2 min

Abstract Words

113

Citations

N/A

Abstract

We study phonons in a dynamical chain of ions confined by a trap with a time-dependent (axial) potential strength and demonstrate that they behave in the same way as quantum fields in an expanding/contracting universe. Based on this analogy, we present a scheme for the detection of the analogue of cosmological particle creation which should be feasible with present-day technology. In order to test the quantum nature of the particle creation mechanism and to distinguish it from classical effects such as heating, we propose to measure the two-phonon amplitude via the 2rm nd red side-band and to compare it with the one-phonon amplitude $1rm st$ red side-band. PACS: 04.62.+v, 98.80.-k, 42.50.Vk, 32.80.Pj.

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  • We study phonons in a dynamical chain of ions confined by a trap with a time-dependent (axial) potential strength and demonstrate that they behave in the same way as quantum...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0705.3755 [2] arXiv https://arxiv.org/abs/0705.3755 [3] Publisher https://arxiv.org/abs/0705.3755

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