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- W4367184490 abstract "Quantum coherence is the basic concept of superposition of quantum states and plays an important role in quantum metrology. We show how a pair of uniformly accelerated observers with a local two-mode Gaussian quantum state affects the Gaussian quantum coherence. We find that the quantum coherence decreases with increasing acceleration, which is due to the Unruh effect that destroys the quantum resource. Essentially, the variation of quantum coherence is caused by the modes mismatch between the input and output mode. Through 2000 randomly generated states, we demonstrate that such mismatch is dominated by the acceleration effect and mildly affected by the waveform parameters. Moreover, the squeezing parameter acted as a suppressor of the reduced coherence, but it tended to be invalid in the high squeezing. In addition, the squeezing parameter can act as a suppressor of the reduced coherence, but the effect of the squeezing parameter tends to be ineffective under high squeezing conditions." @default.
- W4367184490 created "2023-04-28" @default.
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- W4367184490 date "2023-04-27" @default.
- W4367184490 modified "2023-10-18" @default.
- W4367184490 title "Modes mismatch induced variation of quantum coherence for two-mode localized Gaussian states in accelerated frame" @default.
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- W4367184490 doi "https://doi.org/10.1140/epjp/s13360-023-03999-y" @default.
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