Abstract
The nonrelativistic limit of nonlocal modifications to the Klein-Gordon operator is studied, and the experimental possibilities of casting stringent constraints on the nonlocality scale via planned and/or current optomechanical experiments are discussed. Details of the perturbative analysis and semianalytical simulations leading to the dynamic evolution of a quantum harmonic oscillator in the presence of nonlocality reported in [A. Belenchia, D. M. T. Benincasa, S. Liberati, F. Marin, F. Marino, and A. Ortolan, Phys. Rev. Lett. 116, 161303 (2016)] are given, together with a comprehensive account of the experimental methodology with particular regard to sensitivity limitations related to thermal decoherence time and active cooling of the oscillator. Finally, a strategy for detecting nonlocality scales of the order of
10
−
22
÷
10
−
26
m
by means of the spontaneous time-periodic squeezing of quantum-coherent states is provided.
10
−
22
÷
10
−
26
m
by means of the spontaneous time-periodic squeezing of quantum-coherent states is provided.
Original language | English |
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Journal | Physical Review D Online |
DOIs | |
Publication status | Published - 25 Jan 2017 |
Externally published | Yes |