scholarly journals Observation of strong radiation pressure forces from squeezed light on a mechanical oscillator

2016 ◽  
Vol 12 (7) ◽  
pp. 683-687 ◽  
Author(s):  
Jeremy B. Clark ◽  
Florent Lecocq ◽  
Raymond W. Simmonds ◽  
José Aumentado ◽  
John D. Teufel
Keyword(s):  
Radiation Pressure ◽  
Mechanical Oscillator ◽  
Squeezed Light ◽  
Strong Radiation

scholarly journals Quantum enhanced feedback cooling of a mechanical oscillator using nonclassical light

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Clemens Schäfermeier ◽  
Hugo Kerdoncuff ◽  
Ulrich B. Hoff ◽  
Hao Fu ◽  
Alexander Huck ◽  
...  
Keyword(s):  
Feedback Control ◽  
Laser Cooling ◽  
Mechanical Oscillator ◽  
Fundamental Physics ◽  
Squeezed Light ◽  
Frequency Standards ◽  
Quantum Feedback ◽  
Consequent Reduction ◽  
Light Probe ◽  
Measurement Rate

Abstract Laser cooling is a fundamental technique used in primary atomic frequency standards, quantum computers, quantum condensed matter physics and tests of fundamental physics, among other areas. It has been known since the early 1990s that laser cooling can, in principle, be improved by using squeezed light as an electromagnetic reservoir; while quantum feedback control using a squeezed light probe is also predicted to allow improved cooling. Here we show the implementation of quantum feedback control of a micro-mechanical oscillator using squeezed probe light. This allows quantum-enhanced feedback cooling with a measurement rate greater than it is possible with classical light, and a consequent reduction in the final oscillator temperature. Our results have significance for future applications in areas ranging from quantum information networks, to quantum-enhanced force and displacement measurements and fundamental tests of macroscopic quantum mechanics.

scholarly journals Cooling of a Micro-Mechanical Oscillator Using Radiation-Pressure Induced Dynamical Backaction

2007 ◽  
Author(s):  
A. Schliesser ◽  
N. Nooshi ◽  
P. Del’Haye ◽  
R. Rivière ◽  
G. Anetsberger ◽  
...  
Keyword(s):  
Radiation Pressure ◽  
Mechanical Oscillator

scholarly journals Broadband reduction of quantum radiation pressure noise via squeezed light injection

2019 ◽  
Vol 14 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Min Jet Yap ◽  
Jonathan Cripe ◽  
Georgia L. Mansell ◽  
Terry G. McRae ◽  
Robert L. Ward ◽  
...  
Keyword(s):  
Radiation Pressure ◽  
Squeezed Light ◽  
Quantum Radiation

Enhanced cooling of micromechanical oscillator in the atom-assisted optomechanical cavity

2014 ◽  
Vol 12 (01) ◽  
pp. 1450005 ◽  
Author(s):  
Yan Han ◽  
Wen-Zhao Zhang ◽  
Jiong Cheng ◽  
Ling Zhou
Keyword(s):  
Radiation Pressure ◽  
Effective Temperature ◽  
Mechanical Oscillator ◽  
Initial State ◽  
Atomic Medium ◽  
Optomechanical Cavity

We investigate the two-mode optomechanical cavity coupled with the three-level cascade atom. We propose a scheme to enhance the cooling of optomechanical oscillator by introducing atomic medium. Our results show that the existence of the atom can lead to a lower effective temperature of mechanical oscillator comparing to the case without atom. The coherence of the injected atomic affects the population of the photon, which can lead to the change in the radiation pressure on the movable mirror. We also show that the cooling of the mechanical oscillator is affected by initial state of inserting atom.

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