scholarly journals SQUEEZED VACUUM INTERFEROMETRY

1995 ◽  
Vol 09 (18) ◽  
pp. 1141-1147 ◽  
Author(s):  
MATTEO G.A. PARIS
Keyword(s):  
Phase Sensitivity ◽  
Homodyne Detection ◽  
Squeezed Vacuum ◽  
Phase Properties

A high-sensitive interferometric scheme is presented. It is based on homodyne detection and squeezed vacuum phase properties. The resulting phase sensitivity scales as δϕ≃[Formula: see text] with respect to input photons number.

scholarly journals The phase sensitivity of an SU(1,1) interferometer with coherent and squeezed-vacuum light

2014 ◽  
Vol 16 (7) ◽  
pp. 073020 ◽  
Author(s):  
Dong Li ◽  
Chun-Hua Yuan ◽  
Z Y Ou ◽  
Weiping Zhang
Keyword(s):  
Phase Sensitivity ◽  
Squeezed Vacuum

scholarly journals Phase sensitivity of an $\operatorname{SU}(1,1)$ interferometer via product detection

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Qingle Wang ◽  
Yami Fang ◽  
Xiaoping Ma ◽  
Dong Li
Keyword(s):  
Coherent States ◽  
The Other ◽  
Phase Sensitivity ◽  
Homodyne Detection ◽  
Quantum Metrology ◽  
Parametric Amplifiers ◽  
Detection Scheme ◽  
Beam Splitters ◽  
Cramer Rao Bound

AbstractWe theoretically analyze the phase sensitivity of an $\operatorname{SU}(1,1)$ SU ( 1 , 1 ) interferometer with various input states by product detection in this paper. This interferometer consists of two parametric amplifiers that play the role of beam splitters in a traditional Mach–Zehnder interferometer. The product of the amplitude quadrature of one output mode and the momentum quadrature of the other output mode is measured via balanced homodyne detection. We show that product detection has the same phase sensitivity as parity detection for most cases, and it is even better in the case with two coherent states at the input ports. The phase sensitivity is also compared with the Heisenberg limit and the quantum Cramér–Rao bound of the $\operatorname{SU}(1,1)$ SU ( 1 , 1 ) interferometer. This detection scheme can be easily implemented with current homodyne technology, which makes it highly feasible. It can be widely applied in the field of quantum metrology.

Purification of Squeezed Vacuum Pulse Generated from a Sagnac Loop Fiber Using Linear Optics and Conditional Homodyne Detection

2009 ◽  
Vol 48 (3) ◽  
pp. 034001 ◽  
Author(s):  
Kenichi Hirosawa ◽  
Yoshinori Momose ◽  
Hidetake Ushio ◽  
Yuji Fujiwara ◽  
Fumihiko Kannari
Keyword(s):  
Homodyne Detection ◽  
Linear Optics ◽  
Squeezed Vacuum

Improved phase sensitivity in a quantum optical interferometer based on multiphoton catalytic two-mode squeezed vacuum states

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Huan Zhang ◽  
Wei Ye ◽  
Chaoping Wei ◽  
Ying Xia ◽  
Shoukang Chang ◽  
...  
Keyword(s):  
Phase Sensitivity ◽  
Optical Interferometer ◽  
Squeezed Vacuum ◽  
Vacuum States ◽  
Quantum Optical

Phase properties of the two-mode squeezed vacuum states

1991 ◽  
Vol 152 (5-6) ◽  
pp. 251-256 ◽  
Author(s):  
Ts. Gantsog ◽  
R. Tanaś
Keyword(s):  
Squeezed Vacuum ◽  
Vacuum States ◽  
Phase Properties

scholarly journals A scheme for Sagnac effect improvement with squeezed vacuum input and homodyne detection

2016 ◽  
Vol 65 (5) ◽  
pp. 054203
Author(s):  
Chen Kun ◽  
Chen Shu-Xin ◽  
Wu De-Wei ◽  
Yang Chun-Yan ◽  
Wu Hao
Keyword(s):  
Sagnac Effect ◽  
Homodyne Detection ◽  
Squeezed Vacuum

scholarly journals Improving the phase sensitivity of an SU(1,1) interferometer with photon-added squeezed vacuum light

2018 ◽  
Vol 26 (22) ◽  
pp. 29099 ◽  
Author(s):  
Li-Li Guo ◽  
Ya-Fei Yu ◽  
Zhi-Ming Zhang
Keyword(s):  
Phase Sensitivity ◽  
Squeezed Vacuum
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