Phonon Pair Creation by Inflating Quantum Fluctuations in an Ion Trap
Phonon Pair Creation by Inflating Quantum Fluctuations in an Ion Trap
Schützhold, R.; Wittemer, M.; Hakelberg, F.; Kiefer, P.; Schröder, J.-P.; Warring, U.; Schaetz, T.; Fey, C.
Quantum theory predicts intriguing dynamics during drastic changes of external conditions. We switch the trapping field of two ions sufficiently fast to tear apart quantum fluctuations, i.e., create pairs of phonons and, thereby, squeeze the ions’ motional state. This process can be interpreted as an experimental analog to cosmological particle creation and is accompanied by the formation of spatial entanglement. Hence, our platform allows one to study the causal connections of squeezing, pair creation, and entanglement and might permit one to cross-fertilize between concepts in cosmology and applications of quantum information processing.
Keywords: Inflation; Quantum Information with trapped Ions; Quantum simulation
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Contribution to WWW
arXiv:1903.05523: https://arxiv.org/abs/1903.05523 -
Physical Review Letters 123(2019)18, 180502
DOI: 10.1103/PhysRevLett.123.180502
Cited 36 times in Scopus
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Permalink: https://www.hzdr.de/publications/Publ-29958