搜索结果: 16-30 共查到“理学 Entanglement”相关记录222条 . 查询时间(0.187 秒)
Generation of continuous-variable quadripartite square cluster state and its entanglement improvement via quantum feedback
quantum optics continuous variable cluster state feedback
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2011/12/15
In this paper, we investigate the generation of continuous-variable quadripartite square cluster state of optical fields and discuss the enhancement of the multipartite entanglement of the cluster sta...
Dephasing of multiparticle Rydberg excitations for fast entanglement generation
multiparticle Rydberg excitations fast entanglement generation Quantum Physics
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2011/8/17
Abstract: An approach to fast entanglement generation based on Rydberg dephasing of collective excitations (spin-waves) in large, optically thick atomic ensembles is proposed. Long-range $1/r^3$ atomi...
On the infeasibility of entanglement generation in Gaussian quantum systems via classical control
entanglement generation Gaussian quantum systems classical control
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2011/10/8
Abstract: This paper uses a system theoretic approach to show that classical linear time invariant controllers cannot generate steady state entanglement in a bipartite Gaussian quantum system which is...
One parameter family of indecomposable optimal entanglement witnesses arising from generalized Choi maps
generalized Choi maps One parameter family Quantum Physics
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2011/10/8
Abstract: In the recent paper [Chru\'{s}ci\'{n}ski and Wudarski, arXiv:1105.4821], it was conjectured that the entanglement witnesses arising from some generalized Choi maps are optimal. We show that ...
The Super Operator System Structures and their applications in Quantum Entanglement Theory
operator system operator space quantum information theory quantum entanglement Schmidt number
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2011/9/5
Abstract: An operator system $\cl S$ with unit $e$, can be viewed as an Archimedean order unit space $(\cl S,\cl S^+,e)$. Using this Archimedean order unit space, for a fixed $k\in \bb N$ we construct...
Sequential, successive, and simultaneous decoders for entanglement-assisted classical communication
simultaneous decoders entanglement-assisted classical communication Quantum Physics
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2011/9/29
Abstract: Bennett et al. showed that allowing shared entanglement between a sender and receiver before communication begins dramatically simplifies the theory of quantum channels, and these results su...
Entanglement in Coupled Harmonic Oscillators via Unitary Transformation
harmonic oscillator unitary transformation purity entanglement
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2011/7/28
Abstract: We develop an approach to study the entanglement in two coupled harmonic oscillators. We start by introducing an unitary transformation to end up with the solutions of the energy spectrum. T...
Multiscale entanglement in ring polymers under spherical confinement
Multiscale entanglement ring polymers spherical confinement
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2011/9/13
The interplay of geometrical and topological entanglement in semiflexible knotted polymer rings inside a spherical cavity is investigated using advanced numerical methods. By using stringent and robus...
Optimal entanglement witnesses from generalized reduction and Robertson maps
Optimal entanglement witnesses generalized reduction Robertson maps
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2011/3/4
We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They give rise to a new class of optimal entanglement witnesses. Their structural physical approximation is...
ENTANGLEMENT DISTRIBUTION OVER THE SUBSYSTEMS AND ITS INVARIANCE
ENTANGLEMENT DISTRIBUTION OVER THE SUBSYSTEMS INVARIANCE
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2014/5/28
We study the entanglement dynamics of two qubits, each of which is embedded into its local amplitude-damping reservoir, and the entanglement distribution among all the bipartite subsystems including q...
Entanglement entropy for odd spheres
Entanglement entropy odd spheres
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2011/3/2
It is shown, non–rigorously, that the effective action on Z q– factored odd spheres (lunes) has a vanishing derivative at q = 1. This leaves the effective action on the ordinary sphere as (minus) the ...
Information Geometric Modeling of Scattering Induced Quantum Entanglement
Information Geometric Modeling Quantum Entanglement
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2011/2/24
We present an information geometric analysis of quantum entanglement generated by an s-wave scattering event between two minimum uncertainty Gaussian wave packets.
Isotropic Entanglement
Isotropic Entanglement
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2011/3/3
We propose a method which we call “Isotropic Entanglement” (IE), that takes inspiration
from Free Probability Theory and other ideas in Random Matrix Theory to predict the eigenvalue
distribution of...
Asymptotic entanglement in 1D quantum walks with a time-dependent coined
Asymptotic entanglement 1D quantum walks time-dependent coined
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2011/3/3
In this paper we investigate the asymptotic behavior of coin position entanglement (CPE) of a discrete-time quantum walk in one dimensional lattice using a time-dependent unitary coin operator.
Yang-Baxter $\breve{R}$ matrix, Entanglement and Yangian
Yang-Baxter $\breve{R}$ matrix Entanglement Yangian
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2011/1/19
We present a method to construct “X” form unitary Yang-Baxter ˘R matrices, which act on the tensor product space V j1\ i ⊗V j2 i+1. We can obtain a set of entangled states for (2 j1+1)×(2 j...