Phase properties of superposed squeezed states

2001 ◽  
Vol 8 (6) ◽  
pp. 422-430
Author(s):  
Suc-Kyoung Hong ◽  
Chung-In Um ◽  
Kyu-Hwang Yeon
Keyword(s):  
Squeezed States ◽  
Phase Properties

Phase properties of amplitude-squared squeezed states

1996 ◽  
Vol 107 (2) ◽  
pp. 679-685
Author(s):  
B. K. Murzakhmetov ◽  
A. V. Chizhov
Keyword(s):  
Squeezed States ◽  
Phase Properties

Phase properties of squeezed states

1989 ◽  
Vol 6 (12) ◽  
pp. 2423 ◽  
Author(s):  
N. Grønbech-Jensen ◽  
P. S. Ramanujam ◽  
P. L. Christiansen
Keyword(s):  
Squeezed States ◽  
Phase Properties

Phase properties of squeezed states of light

1987 ◽  
Vol 122 (2) ◽  
pp. 77-83 ◽  
Author(s):  
De-min Yao
Keyword(s):  
Squeezed States ◽  
Phase Properties

Phase properties of squeezed states of light

1989 ◽  
Vol 70 (6) ◽  
pp. 529-534 ◽  
Author(s):  
J.A. Vaccaro ◽  
D.T. Pegg
Keyword(s):  
Squeezed States ◽  
Phase Properties

Phase properties of coherent phase and generalized geometric states

1997 ◽  
Vol 44 (1) ◽  
pp. 149-162 ◽  
Author(s):  
A.-S. F. OBADA, O. M. YASSIN and STEPHEN
Keyword(s):  
Coherent Phase ◽  
Phase Properties

scholarly journals Overcoming detection loss and noise in squeezing-based optical sensing

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Gaetano Frascella ◽  
Sascha Agne ◽  
Farid Ya. Khalili ◽  
Maria V. Chekhova
Keyword(s):  
Shot Noise ◽  
Optical Sensing ◽  
Detection Efficiency ◽  
Signal To Noise Ratio ◽  
Real Life ◽  
Squeezed States ◽  
Squeezed Light ◽  
Noise Limit ◽  
Imaging And Spectroscopy ◽  
Shot Noise Limit

AbstractAmong the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to considerably increase signal-to-noise ratio in imaging and spectroscopy, and are already used in real-life gravitational-wave detectors. But despite being more robust than other states, they are still very fragile, which narrows the scope of their application. In particular, squeezed states are useless in measurements where the detection is inefficient or the noise is high. Here, we experimentally demonstrate a remedy against loss and noise: strong noiseless amplification before detection. This way, we achieve loss-tolerant operation of an interferometer fed with squeezed and coherent light. With only 50% detection efficiency and with noise exceeding the level of squeezed light more than 50 times, we overcome the shot-noise limit by 6 dB. Sub-shot-noise phase sensitivity survives up to 87% loss. Application of this technique to other types of optical sensing and imaging promises a full use of quantum resources in these fields.

Effect of polycyclosilane microstructure on thermal properties

2021 ◽  
Author(s):  
Qifeng Jiang ◽  
Sydnee Wong ◽  
Rebekka S Klausen
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Thermal Characterization ◽  
Side Chains ◽  
Phase Properties

Thermal characterization of polysilanes has focused on the influence of organic side chains, whereas little is understood about the influence of silane backbone microstructure on thermal stability, phase properties, and...

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