Enhanced entanglement and controlling quantum steering in a
Laguerre-Gaussian cavity optomechanical system with two rotating mirrors
- URL: http://arxiv.org/abs/2303.06685v1
- Date: Sun, 12 Mar 2023 15:10:31 GMT
- Title: Enhanced entanglement and controlling quantum steering in a
Laguerre-Gaussian cavity optomechanical system with two rotating mirrors
- Authors: Amjad Sohail, Zaheer Abbas, Rizwan Ahmed, Aamir Shahzad, Naeem Akhtar
and Jia-Xing Peng
- Abstract summary: We present an efficient theoretical scheme for controlling quantum steering and enhancing entanglement in a Laguerre-Gaussian rotating cavity optomechanical system.
In addition to bipartite entanglement, we achieve mirror-cavity-mirror tripartite entanglement.
For two rotating mirrors, quantum steering is found to be asymmetric both one-way and two-way.
- Score: 1.705680323693919
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Gaussian quantum steering is a type of quantum correlation in which two
entangled states exhibit asymmetry. We present an efficient theoretical scheme
for controlling quantum steering and enhancing entanglement in a
Laguerre-Gaussian (LG) rotating cavity optomechanical system with an optical
parametric amplifier (OPA) driven by coherent light. The numerical simulation
results show that manipulating system parameters such as parametric gain
$\chi$, parametric phase $\theta$, and rotating mirror frequency, among others,
significantly improves mirror-mirror and mirror-cavity entanglement. In
addition to bipartite entanglement, we achieve mirror-cavity-mirror tripartite
entanglement. Another intriguing discovery is the control of quantum steering,
for which we obtained several results by investigating it for various system
parameters. We show that the steering directivity is primarily determined by
the frequency of two rotating mirrors. Furthermore, for two rotating mirrors,
quantum steering is found to be asymmetric both one-way and two-way. As a
result, we can assert that the current proposal may help in the understanding
of non-local correlations and entanglement verification tasks.
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