Quantum time dilation in atomic spectra

doi:10.1103/PhysRevResearch.3.023053

2021-04-19

Piotr T. Grochowski *

Alexander R. H. Smith

Andrzej Dragan

Kacper Dębski

DOI：10.1103/PhysRevResearch.3.023053

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En 中文

Quantum time dilation occurs when a clock moves in a superposition of relativistic momentum wave packets. The lifetime of an excited hydrogenlike atom can be used as a clock, which we use to demonstrate how quantum time dilation manifests in a spontaneous emission process. The resulting emission rate differs when compared with the emission rate of an atom prepared in a mixture of momentum wave packets at order v(2)/c(2). This effect is accompanied by a quantum correction to the Doppler shift due to the coherence between momentum wave packets. This quantum Doppler shift affects the spectral line shape at order v/c. However, its effect on the decay rate is suppressed when compared with the effect of quantum time dilation. We argue that spectroscopic experiments offer a technologically feasible platform to explore the effects of quantum time dilation.

Keyword:

SPONTANEOUS EMISSION

CLOCKS

INTERFEROMETRY

SUPERPOSITION

ENTANGLEMENT

DECOHERENCE

OPTICS

PHASE

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Physical Review Research

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4.2

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7.6K

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Polish Academy of Sciences

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3.0W

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University of Warsaw

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center for theoretical physics - polish academy of sciences

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222

论文数: 171

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