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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.
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...
Generation of Entangled States of Multiple Superconducting Quantum
Interference Devices in Cavity
entanglement superconducting cavity
2007/8/15
2006Vol.45No.4pp.709-711DOI:
Generation of Entangled States of Multiple Superconducting Quantum
Interference Devices in Cavity
ZHAN Zhi-Ming,1 LI Jia-Hua,2 and LI Wei-Bin3
...
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
...
Quantum Key Distribution Scheme Based on Dense Encoding in Entangled States
quantum key distribution dense coding quantum entanglement
2007/8/15
2005Vol.43No.4pp.627-630DOI:
Quantum Key Distribution Scheme Based on Dense Encoding in Entangled States
ZHANG Xiao-Long,1,2 ZHANG Yue-Xia,1,2 and
GAO Ke-Lin1,2
1 State ...