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Two Local Observables are Sufficient to Characterize Maximally Entangled States of N Qubits
Local Observables Characterize Maximally Entangled States
2010/11/8
Maximally entangled states (MES) represent a valuable resource in quantum information processing. In $N$-qubit systems the MES are $N$-GHZ states, i.e. the collection of $\ket{GHZ_N}=\frac{1}{\sqrt{2}...
Deterministic creation of stationary entangled states by dissipation
Deterministic creation stationary entangled states dissipation
2010/10/21
We propose a practical physical system for creation of a stationary entanglement by dissipation without employing the environment engineering techniques. The system proposed is composed of two perfect...
Entangled states considered as physical representations of classical algorithms
Entangled states physical representations classical algorithms
2010/10/21
There are good reasons to believe that we are classical algorithms run on (effectively) classical machines. However, the fact that a physical state of a system in a universe described by a classical d...
Interference and complementarity for two-photon hybrid entangled states
Interference complementarity two-photon hybrid entangled states
2010/10/20
In this work we generate two-photon hybrid entangled states (HES), where the polarization of one photon is entangled with the transverse spatial degree of freedom of the second photon. The photon pair...
We propose new measures that distinguish and classify entangled states. The measures are
algebraic invariants of linear maps associated with the states. Considering qubits as well as higher spin syst...
Protecting unknown two-qubit entangled states by nesting Uhrig's dynamical decoupling sequences
unknown two-qubit entangled states Uhrig's dynamical decoupling sequences
2010/10/18
Future quantum technologies rely heavily on the possibility of high-efficiency protection of quan-tum entanglement against environment-induced decoherence. A recent study showed that an exten-sion of ...
Efficient creation of maximally entangled states by modulation of tunneling rates
entangled states modulation of tunneling rates
2010/4/16
For systems described by the two-site Bose-Hubbard Hamiltonian, we show that a sinusoidal modulation of the tunneling matrix element assists higher-order co-tunneling processes. Using this mechanism, ...
Classification of the Entangled States $2 \times M \times N$
matrix decomposition method stochastic local operations and classical communication
2010/3/10
We extend the matrix decomposition method(MDM) in classifying the $2\times N\times N$ truly entangled states to $2\times M\times N$ system under the condition of stochastic local operations and classi...
Teleportation via thermally entangled states of a two-qubit Heisenberg XXZ chain
Heisenberg XXZ chain teleportation thermal entanglement
2009/8/14
We investigate quantum teleportation as a tool to study the thermally entangled state of a two-qubit Heisenberg XXZ chain. Our work is mainly to investigate the characteristics of a Heisenberg XXZ cha...
All entangled states are useful for channel discrimination
entangled states useful channel discrimination
2010/4/8
We prove that every entangled state is useful as a resource for the problem of minimum-error channel discrimination. More specifically, given a single copy of an arbitrary bipartite entangled state, i...
Robust entangled states
Robust states
2010/4/8
We establish a technique to find the states with most robust entanglement in dissipative quantum systems and explicitly construct those state for various environments.
Deterministic Quantum Key Distribution Using Two Non-orthogonal Entangled States
quantum key distribution quantum entanglement state
2007/8/15
2007Vol.47No.3pp.459-463DOI:
Deterministic Quantum Key Distribution Using Two Non-orthogonal Entangled States
GUO Ying1,2 and ZENG Gui-Hua2
1 Department of Communication...
Engineering Multi-atom Entangled States via Cavity Decay
entangled state photon cavity decay
2007/8/15
2007Vol.47No.4pp.719-721DOI:
Engineering Multi-atom Entangled States via Cavity Decay
ZHENG Shi-Biao
Department of Electronic Science and Applied Physics,
Fuzhou Univer...
High-Speed Generation of Entangled States for Two Three-Level Atoms
entangled state three-level atom cavity
2007/8/15
2007Vol.47No.3pp.555-556DOI:
High-Speed Generation of Entangled States for Two Three-Level Atoms
ZHENG Shi-Biao
Department of Electronic Science and Applied Physics,
Fuz...
Generation of Maximally Entangled States for Many Two-Level Atoms
in a Thermal Cavity
entanglement GHZ state large-detune
2007/8/15
2007Vol.47No.3pp.557-560DOI:
Generation of Maximally Entangled States for Many Two-Level Atoms
in a Thermal Cavity
JIANG Chun-Lei and FANG Mao-Fa
College of Physics and ...