搜索结果: 1-15 共查到“物理学 squeezing”相关记录31条 . 查询时间(0.116 秒)
Polarization squeezing of light by single passage through an atomic vapor
Polarization squeezing single passage atomic vapor
2011/8/17
Abstract: We have studied relative-intensity fluctuations for a variable set of orthogonal elliptic polarization components of a linearly polarized laser beam traversing a resonant $^{87}$Rb vapor cel...
Orientation-to-alignment conversion and spin squeezing
Orientation-to-alignment conversion spin squeezing
2011/9/2
The relationship between orientation-to-alignment conversion (a form of atomic polarization evolution induced by an electric eld) and the phenomenon of spin squeezing is demonstrated. A \stretched" s...
Controlling phonon entanglement and squeezing via one- and two-phonon interference
Controlling phonon entanglement squeezing two-phonon interference
2010/11/19
When ultrafast laser pulse strikes the crystal with a van Hove singularity in the phonon density of states, it creates a pair of anti-correlated in wave vector acoustic phonons. As a result, the atomi...
Would one rather store squeezing or entanglement in continuous variable quantum memories?
rather store squeezing entanglement continuous variable
2010/11/5
Given two quantum memories for continuous variables (e.g., the collective pseudo-spin of two atomic ensembles) and the possibility to perform passive optical operations (typically beam-splitters) on t...
Spin Squeezing, Negative Correlations, and Concurrence in the Quantum Kicked Top Model
Spin Squeezing Negative Correlations Concurrence Quantum Kicked Top Model
2010/10/29
We study spin squeezing, negative correlations, and concurrence in the quantum kicked top model. We prove that the spin squeezing and negative correlations are equivalent for spin systems with only sy...
Teleporting squeezing: Optimization using non-Gaussian resources
Teleporting squeezing non-Gaussian resources
2010/10/21
We study the continuous-variable quantum teleportation of states, statistical moments of observables, and scale parameters such as squeezing. We investigate the problem both in ideal and imperfect Vai...
New 3-mode squeezing operator and squeezed vacuum state in 3-wave mixing
New 3-mode squeezing operator squeezed vacuum state 3-wave mixing
2010/10/19
In a 3-wave mixing process occurring in some nonlinear optical medium when a† 1mode interacts
with both a† 2mode and a† 3mode, we theoretically study the squeezing effect generated ...
Squeezing Inequalities and Entanglement for Identical Particles
Squeezing Inequalities Entanglement Identical Particles
2010/10/18
By identifying non-local effects in systems of identical Bosonic qubits through correlations of their commuting observables, we show that entanglement is not necessary to violate certain squeezing ine...
Spin-squeezing and Dicke state preparation through single-photon heterodyne measurement
Dicke state single-photon heterodyne measurement
2010/3/10
We investigate the collapse of a coherent superposition of two-level atoms induced by a single-photon heterodyne quantum non-demolition (QND) measurement, and show that such a measurement process lead...
Adiabatic Creation of Atomic Squeezing in Dark States vs. Decoherences
Atomic Squeezing Dark States Decoherences
2010/3/10
We study the multipartite correlations of the multi-atom dark states, which are characterized by the atomic squeezing beyond the pairwise entanglement. It is shown that, in the photon storage process ...
Continuous Variable Entanglement and Squeezing of Orbital Angular Momentum States
Continuous Variable Entanglement and Squeezing Orbital Angular Momentum States
2010/4/8
We report the first experimental characterization of the first-order continuous variable orbital angular momentum states. Using a spatially non-degenerate optical parametric oscillator (OPO) we produc...
Spatial state Stokes-operator squeezing and entanglement for optical beams
Stokes-operator squeezing entanglement optical beams
2010/4/12
The transverse spatial attributes of an optical beam can be decomposed into the position, momentum and orbital angular momentum observables. The position and momentum of a beam is directly related to ...
Generalized intelligent states and SU(1,1) and SU(2) squeezing
Generalized intelligent states SU(1,1) SU(2) squeezing
2010/10/15
A sufficient condition for a state | i to minimize the Robertson-Schr¨odinger uncertainty relation for two observables A and B is obtained which for A with no discrete spectrum is also a necessary one...
Entropy Squeezing in Coupled Field-Superconducting Charge Qubit
with Intrinsic Decoherence
entropy squeezing intrinsic decoherence superconducting charge qubit
2007/8/15
2007Vol.48No.1pp.63-66DOI:
Entropy Squeezing in Coupled Field-Superconducting Charge Qubit
with Intrinsic Decoherence
YAN Xue-Qun, SHAO Bin, and ZOU Jian
Department of ...
Amplitude-Squared Squeezing in a Kerr-Nonlinear Blackbody
Kerr-nonlinear blackbody amplitude-squared squeezing nonpolariton
2007/8/15
2007Vol.47No.5pp.933-936DOI:
Amplitude-Squared Squeezing in a Kerr-Nonlinear Blackbody
WU Zi-Xia, CHENG Ze, ZHANG Yan-Min, and CHENG Zheng-Ze
Department of Physics, Huaz...