搜索结果: 1-15 共查到“量子力学 oscillator”相关记录16条 . 查询时间(0.062 秒)
Optomechanical sideband cooling of a micromechanical oscillator close to the quantum ground state
quantum ground optomechanical micromechanical oscillator
2010/11/8
Cooling a mesoscopic mechanical oscillator to its quantum ground state is elementary for the preparation and control of low entropy quantum states of large scale objects. Here, we pre-cool a 70-MHz mi...
Decoherence in a quantum harmonic oscillator monitored by a Bose-Einstein condensate
Decoherence quantum harmonic oscillator monitored Bose-Einstein condensate
2010/11/9
We investigate the dynamics of a quantum oscillator, whose evolution is monitored by a Bose-Einstein condensate (BEC) trapped in a symmetric double well potential. It is demonstrated that the oscillat...
Dynamics of a qubit coupled to a dissipative nonlinear quantum oscillator: an effective bath approach
Dynamics qubit coupled dissipative nonlinear quantum oscillator effective bath approach
2010/11/8
We consider a qubit coupled to a nonlinear quantum oscillator, the latter coupled to an Ohmic bath, and investigate the qubit dynamics. This composed system can be mapped onto that of a qubit coupled...
Generalized quantum isotonic nonlinear oscillator in d dimensions
Generalized quantum isotonic nonlinear oscillator d dimensions
2010/11/9
We present a supersymmetric analysis for the d-dimensional Schroedinger equation with the generalized isotonic nonlinear-oscillator potential V(r)={B^2}/{r^{2}}+\omega^{2} r^{2}+2g{(r^{2}-a^{2})}/{(r^...
Analysis of a continuous-variable quadripartite cluster state from a single optical parametric oscillator
continuous-variable quadripartite cluster state single optical parametric oscillator
2010/10/20
We examine the feasibility of generating continuous-variable multipartite entanglement in an
intra-cavity quadruply concurrent downconversion scheme that has been proposed for the generation of clust...
Ultimate quantum bounds on mass measurements with a nano-mechanical oscillator
Ultimate quantum bounds mass measurements nano-mechanical oscillator
2010/10/21
Nano-mechanical resonators have a large potential as sensors of very small adsorbed masses,
down to the atomic level and beyond. Here I establish the fundamental lower bound on the mass
that can be ...
Physicists in Germany and France have coupled a Bose–Einstein condensate (BEC) of ultracold atoms to the vibrations of a mechanical oscillator for the first time. Although the oscillator is relatively...
Path Integral Evaluation of a Time-Dependent Oscillator in an External Field
Path Integral Propagator Green functions and harmonic oscillator
2010/4/8
The Lagrangian of a system describing the dynamical behaviour of a time-dependent harmonic oscillator is modified and then used to evaluate the Feynman path integral of the oscillator. The path integr...
Two-spinors, oscillator algebras, and qubits: Aspects of manifestly covariant approach to relativistic quantum information
Two-spinors SL(2,C) qubits quantization
2010/3/10
The first part of the paper reviews applications of 2-spinor methods to relativistic qubits (analogies between tetrads in Minkowski space and 2-qubit states, qubits defined by means of null directions...
Demonstration of an ultracold micro-optomechanical oscillator in a cryogenic cavity
Demonstration ultracold micro-optomechanical oscillator cryogenic cavity
2010/4/8
Preparing and manipulating quantum states of mechanical resonators is a highly interdisciplinary undertaking that now receives enormous interest for its far-reaching potential in fundamental and appli...
Resolved-sideband cooling and measurement of a micromechanical oscillator close to the quantum limit
Resolved-sideband cooling measurement micromechanical oscillator quantum limit
2010/4/8
The observation of quantum phenomena in macroscopic mechanical oscillators has been a subject of interest since the inception of quantum mechanics. Prerequisite to this regime are both preparation of ...
(3+1)-Dimensional Quantum Mechanics from Monte Carlo Hamiltonian:
Harmonic Oscillator
Monte Carlo method quantum mechanics computational
physics
2007/8/15
2001Vol.36No.1pp.7-10DOI:
(3+1)-Dimensional Quantum Mechanics from Monte Carlo Hamiltonian:
Harmonic Oscillator
LUO Xiang-Qian,1,3 XU Hao,1 YANG Jie-Chao,2 WANG Yu-Li,2 CHANG Di...
Two-Variable Hermite Function as Quantum Entanglement of Harmonic
Oscillator's Wave Functions
two-variable Hermite function quantum entanglement
Bargmann representation Schmidt decomposition
2007/8/15
2007Vol.47No.6pp.1024-1028DOI:
Two-Variable Hermite Function as Quantum Entanglement of Harmonic
Oscillator's Wave Functions
LU Hai-Liang and FAN Hong-Yi
Department of P...
Decoherence of a Quantum Nonlinear Oscillator Under a Non-zero Temperature
Thermal Bath
quantum nonlinear oscillator linear entropy decoherence timscale
2007/8/15
2006Vol.45No.3pp.542-546DOI:
Decoherence of a Quantum Nonlinear Oscillator Under a Non-zero Temperature
Thermal Bath
HAN Li-Ping, ZHOU Ling, and SONG He-Shan
Department ...
Quantum and Classical Exact Solutions of
Harmonic Oscillator in a Time-Dependent Magnetic Field
harmonic oscillator magnetic field exact wave function exact classical solution
2007/8/15
2005Vol.43No.6pp.1027-1029DOI:
Quantum and Classical Exact Solutions of
Harmonic Oscillator in a Time-Dependent Magnetic Field
LIANG Mai-Lin1,2 and LIU Li-Yan1
1 Departm...