Universality of stationary entanglement in an optomechanical system driven by non-Markovian noise and squeezed light
arXiv:2502.02979 · doi:10.1103/vzhk-cdc3
Abstract
Optomechanical systems subjected to environmental noise give rise to rich physical phenomena. We investigate entanglement between a mechanical oscillator and the reflected coherent optical field in a general, not necessarily Markovian environment. For the input optical field, we consider stationary Gaussian states and frequency dependent squeezing. We demonstrate that for a coherent laser drive, either unsqueezed or squeezed in a frequency-independent manner, optomechanical entanglement is destroyed after a threshold that depends only on the environmental noises -- independent of the coherent coupling between the oscillator and the optical field, or the squeeze factor. In this way, we have found a universal entangling-disentangling transition. We also show that for a configuration in which the oscillator and the reflected field are separable, entanglement cannot be generated by incorporating frequency-dependent squeezing in the optical field.
arXiv comment7 pages, 2 figures
References in corpus (30)
- Cavity Optomechanics
- A computable measure of entanglement
- Quantum information with continuous variables
- Advanced LIGO
- Peres-Horodecki separability criterion for continuous variable systems
- The logarithmic negativity: A full entanglement monotone that is not convex
- Optomechanical entanglement between a movable mirror and a cavity field
- Continuous variable quantum information: Gaussian states and beyond
- Entanglement in continuous variable systems: Recent advances and current perspectives
- Conversion of conventional gravitational-wave interferometers into QND interferometers by modifying their input and/or output optics
- Quantum Decoherence
- Bound entangled Gaussian states
- Creating and probing macroscoping entanglement with light
- Macroscopic Quantum Mechanics: Theory and Experimental Concepts of Optomechanics
- Quantum entanglement and teleportation in pulsed cavity-optomechanics
- Observation of non-Markovian micro-mechanical Brownian motion
- Quantum correlations between the light and kilogram-mass mirrors of LIGO
- Quantum Measurement Theory in Gravitational-Wave Detectors
- Frequency-Dependent Squeezing for Advanced LIGO
- Mechanically Detecting and Avoiding the Quantum Fluctuations of a Microwave Field
- Entanglement of macroscopic test masses and the Standard Quantum Limit in laser interferometry
- Entanglement of formation for an arbitrary two-mode Gaussian state
- Optical Backaction-Evading Measurement of a Mechanical Oscillator
- Probing macroscopic quantum states with a sub-Heisenberg accuracy
- Direct Measurement of Coating Thermal Noise in Optical Resonators
- Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus
- Witnessing Opto-Mechanical Entanglement with Photon-Counting
- Universal Quantum Entanglement between an Oscillator and Continuous Fields
- Macroscopic quantum entanglement between an optomechanical cavity and a continuous field in presence of non-Markovian noise
- Characterizing stationary optomechanical entanglement in the presence of non-Markovian noise