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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}...
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, ...
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.
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 ...
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...
Decoherence of Entangled States Calculated by a Systematic Approximate Method
decoherence coherent-state two-state
2007/8/15
2007Vol.47No.5pp.791-800DOI:
Decoherence of Entangled States Calculated by a Systematic Approximate Method
LIU Tao,1 FAN Yun-Xia,1 HUANG Shu-Weng,1 WANG Ke-Lin,1,2 and WANG Yi2,3...
Preparation of Multi-Atom Entangled States with a Single
Cavity in a Thermal State
multi-atom entangled state thermal state nonresonant state
2007/8/15
2002Vol.38No.6pp.663-666DOI:
Preparation of Multi-Atom Entangled States with a Single
Cavity in a Thermal State
ZHENG Shi-Biao
Department of Electronic Science and Appli...
Scheme for Concentration of Unknown Photonic GHZ Entangled
States via Linear Optical Elements
unknown photonic GHZ entangled states concentration linear optical elements
2007/8/15
2006Vol.46No.5pp.853-856DOI:
Scheme for Concentration of Unknown Photonic GHZ Entangled
States via Linear Optical Elements
ZHANG Gang,1,2 YANG Ming,1 and CAO Zhuo-Liang1
...
Storage of Entangled States with Multiple Trapped Ions in Thermal Motion
entangled state storage trapped ions
2007/8/15
2006Vol.45No.4pp.605-608DOI:
Storage of Entangled States with Multiple Trapped Ions in Thermal Motion
GONG Xiao-Long1,3 and YANG Wen-Xing2,3
1 Department of Physics, Yan...
Application of Bipartite Entangled States to Quantum Mechanical
Version of Complex Wavelet Transforms
entangled states complex wavelet transform
2007/8/15
2006Vol.45No.4pp.609-613DOI:
Application of Bipartite Entangled States to Quantum Mechanical
Version of Complex Wavelet Transforms
FAN Hong-Yi,1,2 LU Hai-Liang,1 and XU Xue-Fen3
...