|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'503'724
Articles rated: 2609
23 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Quantum ground-state cooling and tripartite entanglement with three-mode optoacoustic interactions | | H. Miao
; C. Zhao
; J. Li
; D. G. Blair
; | | Date: |
19 Dec 2008 | | Abstract: | We present a quantum analysis of the three-mode optoacoustic parametric
interactions (one acoustic mode and two optical modes) in an optical cavity,
which was previously analyzed by Braginsky et al. in the classical picture.
This system can be implemented in the quantum ground-state cooling of the
acoustic mode and we show it is equivalent to the cavity-assisted scheme used
extensively in the present cooling experiments, where one acoustic mode couples
to one optical mode in a detuned cavity. The corresponding cooling limit is
derived by defining an effective temperature of the optical field basing upon
the Fluctuation-Dissipation-Theorem (FDT), which recovers the resolved-sideband
limit obtained previously by Marquart et al. and Wilson-Rae et al. In addition,
we investigate the tripartite quantum entanglement and point out the similarity
and difference between this system and the one considered by Paternostro et
al., where a double-cavity scheme was proposed. This three-mode system exhibits
robust entanglements between the optical modes and the acoustic mode. Given a 1
MHz and 0.1 mg mechanical oscillator with Q-factor 10^7 and an optical finesse
10^4, the entanglement persists even when the environmental temperature
approaches 80 K. | | Source: | arXiv, 0812.3819 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER