搜索结果: 1-15 共查到“量子力学 Entanglement”相关记录83条 . 查询时间(0.072 秒)
Experimental Observation of Entanglement Duality for Identical Particles
entanglement duality quantum indistinguishability quantum mechanics
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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
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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...
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...
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...
Bipartite Entanglement in Out-of-equilibrium Correlated Many-body Systems
Bipartite Entanglement Out-of-equilibrium Correlated Many-body Systems
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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
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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
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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
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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
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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
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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
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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 ...
Entanglement cannot make imperfect quantum channels perfect
Entanglement imperfect quantum channels perfect
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2010/11/8
Entangled inputs can enhance the capacity of quantum channels, this being one of the consequences of the celebrated result showing the non-additivity of several quantities relevant for quantum informa...
Comparing globalness of bipartite unitary operations acting on quantum information: delocalization power, entanglement cost, and entangling power
Comparing globalness bipartite unitary operations acting quantum information delocalization power entanglement cost entangling power
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2010/11/8
We compare three different characterizations of the globalness of bipartite unitary operations based on different tasks, namely, delocalization power, entanglement cost for LOCC implementation, and e...
Isometric Entanglement of Particle Positions in Quantum Bound Systems
Isometric Entanglement Particle Positions Quantum Bound Systems
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2010/11/5
It is shown the role of a scalar potential in the Schr\"{o}dinger equation for a steady-state two-particle system is equivalent to an isometric entanglement of the position coordinates of the particle...
Would one rather store squeezing or entanglement in continuous variable quantum memories?
rather store squeezing entanglement continuous variable
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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...