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Title of Journal: Quantum Inf Process

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Abbravation: Quantum Information Processing

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Springer US

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DOI

10.1007/bf02572139

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ISSN

1573-1332

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Concurrence in the framework of coherent states

Authors: K Berrada A Chafik H Eleuch Y Hassouni
Publish Date: 2009/07/29
Volume: 9, Issue: 1, Pages: 13-26
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Abstract

The concurrence of a twoqubit nonorthogonal pure state is determined through the construction of this state in the language of spin coherent states The generalization of this method to the case of a class of mixed states is given The concurrence in this case is nothing but a function of the amplitude of the spin coherent states it is shown also that probability present an interesting behavior

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Other Papers In This Journal:
  1. Nonlocality in pure and mixed n-qubit X states
  2. Super quantum discord for general two qubit X states
  3. Non-Markovian entanglement dynamics of two qubits interacting with a common electromagnetic field
  4. An ancilla-based quantum simulation framework for non-unitary matrices
  5. A new sure-success generalization of Grover iteration and its application to weight decision problem of Boolean functions
  6. Quantum Fisher information for moving three-level atom
  7. A quantum model for autonomous learning automata
  8. Monogamy of correlations versus monogamy of entanglement
  9. Quantum discord for the general two-qubit case
  10. A quantization procedure based on completely positive maps and Markov operators
  11. On conclusive eavesdropping and measures of mutual information in quantum key distribution
  12. The CGMV method for quantum walks
  13. Noncyclic geometric quantum computation and preservation of entanglement for a two-qubit Ising model
  14. Noise and the magic square game
  15. Geometry and dynamics of one-norm geometric quantum discord
  16. Nuclear polarization and entanglement in spin systems
  17. Controllability and Universal Three-qubit Quantum Computation with Trapped Electron States
  18. Quantum relative phase, m -tangle, and multi-local Lorentz-group invariant
  19. Perfect state transfer by means of discrete-time quantum walk on complete bipartite graphs
  20. Dynamics of one-dimensional tight-binding models with arbitrary time-dependent external homogeneous fields
  21. Classical–quantum arbitrarily varying wiretap channel: Ahlswede dichotomy, positivity, resources, super-activation
  22. Multi-party quatum private compariso protocol with $$$$-level etagled states
  23. Lower bound of quantum uncertainty from extractable classical information
  24. Quantum image encryption based on restricted geometric and color transformations
  25. Analysis and improvement of the watermark strategy for quantum images based on quantum Fourier transform
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