Noise-Tolerant Optomechanical Entanglement via Synthetic Magnetism
- URL: http://arxiv.org/abs/2201.10814v2
- Date: Fri, 5 Aug 2022 13:22:11 GMT
- Title: Noise-Tolerant Optomechanical Entanglement via Synthetic Magnetism
- Authors: Deng-Gao Lai, Jie-Qiao Liao, Adam Miranowicz, and Franco Nori
- Abstract summary: We propose how to generate optomechanical entanglement via emphDM breaking induced by synthetic magnetism.
We find that at nonzero temperature, light and vibrations are emphseparable in the DM-unbreaking regime but emphentangled in the DM-breaking regime.
The threshold thermal phonon number for preserving entanglement in our simulations has been observed to be up to emphthree orders of magnitude stronger than that in the DM-unbreaking regime.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Entanglement of light and multiple vibrations is a key resource for
multi-channel quantum information processing and memory. However, entanglement
generation is generally suppressed, or even fully destroyed, by the dark-mode
(DM) effect induced by the coupling of multiple degenerate or near-degenerate
vibrational modes to a common optical mode. Here we propose how to generate
optomechanical entanglement via \emph{DM breaking} induced by synthetic
magnetism. We find that at nonzero temperature, light and vibrations are
\emph{separable} in the DM-unbreaking regime but \emph{entangled} in the
DM-breaking regime. Remarkably, the threshold thermal phonon number for
preserving entanglement in our simulations has been observed to be up to
\emph{three} orders of magnitude stronger than that in the DM-unbreaking
regime. The application of the DM-breaking mechanism to optomechanical networks
can make noise-tolerant entanglement networks feasible. These results are quite
general and can initiate advances in quantum resources with immunity against
both dark modes and thermal noise.
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