Universality of stationary entanglement in an optomechanical system driven by non-Markovian noise and squeezed light
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914030497562624 |
|---|---|
| author | Direkci, Su Winkler, Klemens Gut, Corentin Aspelmeyer, Markus Chen, Yanbei |
| author_facet | Direkci, Su Winkler, Klemens Gut, Corentin Aspelmeyer, Markus Chen, Yanbei |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_02979 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Universality of stationary entanglement in an optomechanical system driven by non-Markovian noise and squeezed light Direkci, Su Winkler, Klemens Gut, Corentin Aspelmeyer, Markus Chen, Yanbei Quantum Physics 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. |
| title | Universality of stationary entanglement in an optomechanical system driven by non-Markovian noise and squeezed light |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.02979 |