Posted On: 04/02/2015 9:39:14 AM
Post# of 22465
Cooling massive objects to the quantum ground state
Beijing, China | Posted on April 1st, 2015
Very recently, Professor Yun-Feng Xiao and Ph.D student Yong-Chun Liu at Peking University, collaborated with Columbia University, have proposed an unresolved sideband ground-state cooling scheme in a generic optomechanical system, by taking advantage of the destructive quantum interference in a cavity optomechanical system with two mechanical modes coupled to the same optical cavity mode (Figure 1), where optomechanically-induced transparency phenomenon occurs. They find that using the multiple inputs, the cascaded cooling effect further suppresses the quantum backaction heating. They show that ground state cooling of the mechanical mode beyond the resolved sideband limit by nearly three orders of magnitude can be achieved.
http://www.nanotech-now.com/news.cgi?story_id=51223
Beijing, China | Posted on April 1st, 2015
Very recently, Professor Yun-Feng Xiao and Ph.D student Yong-Chun Liu at Peking University, collaborated with Columbia University, have proposed an unresolved sideband ground-state cooling scheme in a generic optomechanical system, by taking advantage of the destructive quantum interference in a cavity optomechanical system with two mechanical modes coupled to the same optical cavity mode (Figure 1), where optomechanically-induced transparency phenomenon occurs. They find that using the multiple inputs, the cascaded cooling effect further suppresses the quantum backaction heating. They show that ground state cooling of the mechanical mode beyond the resolved sideband limit by nearly three orders of magnitude can be achieved.
http://www.nanotech-now.com/news.cgi?story_id=51223
(0)
(0)
