搜索结果: 1-15 共查到“理论物理学 Entanglement”相关记录128条 . 查询时间(0.117 秒)
Experimental Observation of Entanglement Duality for Identical Particles
entanglement duality quantum indistinguishability quantum mechanics
2016/1/22
It was shown recently that entanglement of identical particles has a feature called dualism (Bose and Home 2013 Phys. Rev. Lett. 110 140404), which is funda-mentally connected with quantum indistingui...
The Existence of Quantum Entanglement Catalysts.
Entanglement catalysts entanglement states entanglement
2012/11/29
Without additional resources, it is often impossible to transform one entangled quantum state into another with local quantum operations and classical communication. Jonathan and Plenio (Phys. Rev. Le...
Generation of continuous-variable quadripartite square cluster state and its entanglement improvement via quantum feedback
quantum optics continuous variable cluster state feedback
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
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...
One parameter family of indecomposable optimal entanglement witnesses arising from generalized Choi maps
generalized Choi maps One parameter family Quantum Physics
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 ...
Sequential, successive, and simultaneous decoders for entanglement-assisted classical communication
simultaneous decoders entanglement-assisted classical communication Quantum Physics
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
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...
Bipartite Entanglement in Out-of-equilibrium Correlated Many-body Systems
Bipartite Entanglement Out-of-equilibrium Correlated Many-body Systems
2010/11/19
Relaxation and thermalization after e.g a quantum quench play a central role in out-of-equilibrium physics (e.g. of ultracold atoms) and electronic transport phenomena. On the other hand, entanglement...
Pseudo-Entanglement Evaluated in Noninertial Frames
Pseudo-Entanglement Evaluated Noninertial Frames Quantum Physics
2010/11/8
We study quantum discord, in addition to entanglement, of bipartite pseudo-entanglement in noninertial frames. It is shown that the entanglement degrades from its maximum value in a stationary frame t...
Dissipative preparation of entanglement in optical cavities
Dissipative preparation entanglement optical cavities
2010/11/8
We propose a novel scheme for the preparation of a maximally entangled state of two atoms in an optical cavity. Starting from an arbitrary initial state, a singlet state is prepared as the unique fixe...
Operational Entanglement Families of Symmetric Mixed N-Qubit States
Operational Entanglement Symmetric Mixed N-Qubit States
2010/11/8
We introduce an operational entanglement classification of symmetric mixed states for an arbitrary number of qubits under stochastic local operations and classical communication (SLOCC). We define fam...
Spatial entanglement in optical parametric oscillators with photonic crystals
entanglement optical parametric oscillators photonic crystals
2010/11/8
The effects of an intracavity photonic crystal in a multimode optical parametric oscillator are studied, with a special focus on quantum fluctuations. The capability to either stimulate or inhibit the...
Entanglement dynamics of bipartite system in squeezed vacuum reservoirs
squeezed vacuum reservoirs bipartite system Quantum Physics
2010/11/8
Entanglement plays a crucial role in quantum information protocols, thus the dynamical behavior of entangled states is of a great importance. In this paper we suggest a useful scheme that permits a di...
Entanglement dynamics of two-bipartite system under the influence of dissipative environments
dissipative environments Quantum Physics
2010/11/8
An experimental scheme is suggested that permits a direct measure of entanglement in a two-qubit cavity system. It is realized in the cavity-QED technology utilizing atoms as flying qubits. With this ...
How the Hawking effect and prepared states affect Entanglement distillability of Dirac fields
Black hole Dirac fields Entanglement distillability
2010/12/21
How the Hawking effect and the prepared states influence the entanglement distillability of Dirac fields in the Schwarzschild spacetime is studied by using the Werner states which are composed of the ...