The influence of thermal photons on the dynamics of a quantum optomechanics system with quadratic cavity–membrane couplings

Nadiki, M. Hassani; Tavassoly, M. K.

doi:10.1016/j.aop.2017.09.006

Cited by 8 publications

(1 citation statement)

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“…Optomechanical systems have potential ability to provide explicit evidences on quantum features in macroscopically arrangement [39]. In cavity optomechanical systems, the optical cavity with one movable mirror is concerned with mechanical effects caused by light through radiation pressure [40][41][42][43]. OMC includes a coupling between photons and phonons, so that OMCs are useful in quantum information processing in order to combine the advantages of different physical systems in a unit architecture [44].…”

Section: Introductionmentioning

confidence: 99%

Distributed entangled state production by using quantum repeater protocol

Ghasemi,

Tavassoly

2021

Preprint

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We consider entangled state production utilizing a full optomechanical arrangement, based on which we create entanglement between two far three-level V-type atoms using a quantum repeater protocol. At first, we consider eight identical atoms (1, 2, • • • , 8), while adjacent pairs (i, i + 1) with i = 1, 3, 5, 7 have been prepared in entangled states and the atoms 1, 8 are the two target atoms. The three-level atoms (1,2,3,4) and (5,6,7,8) distinctly become entangled with the system including optical and mechanical modes by performing the interaction in optomechanical cavities between atoms (2,3) and (6,7), respectively. Then, by operating appropriate measurements, instead of Bell state measurement which is a hard task in practical works, the entangled states of atoms (1,4) and (5,8) are achieved. Next, via interacting atoms (4,5) of the pairs (1,4) and (5,8) and operating proper measurement, the entangled state of target atoms (1,8) is obtained. In the continuation, entropy and success probability of the produced entangled state are then evaluated. It is observed that the time period of entropy is increased by increasing the mechanical frequency (ω M ) and by decreasing optomechanical coupling strength to the field modes (G). Also, in most cases, the maximum of success probability is increased by decreasing G and via decreasing ω M .

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