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Title of Journal: Int J Theor Phys

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Abbravation: International Journal of Theoretical Physics

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Springer US

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DOI

10.1016/0022-1902(69)80211-3

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1572-9575

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Quantum State Transfer Via a TwoQubit Heisenberg

Authors: GuoHui Yang Xiang Yang Miao Jun Feng Zhang
Publish Date: 2009/05/23
Volume: 48, Issue: 9, Pages: 2570-2578
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Abstract

We report the transfer fidelities of twoqubit pure state via a twoqubit Heisenberg XYZ spin model under a nonuniform magnetic field It shown us that not only the average fidelity can be enhanced evidently but also the ideal fidelity region can be broadened by introducing the interaction of z component of two neighboring spins J z Decreasing the anisotropy parameter γ also can improve F a and result in ideal fidelity Our study on the average fidelity of this quantum channel system also shows that for any finite value of temperature T we can obtain the ideal average fidelity by improving the inhomogeneous magnetic field b F a is infinitely close to the maximum value of classical communication 2/3 with increasing b While increasing the uniform field B can not do this F a are always inferior to 2/3 for enough larger B

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Other Papers In This Journal:
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  2. Efficient and Economic Schemes for Remotely Preparing a Four-Qubit Cluster-Type Entangled State
  3. Entanglement Entropy in an Opened Antiferromagnetic Heisenberg Chain with Alternating Interaction
  4. Spin Squeezing in Superposition of Four-Qubit Symmetric State and W States
  5. Corrected Hawking Temperature in Snyder’s Quantized Space-time
  6. Local Copying of d × d -dimensional Partially Entangled Pure States
  7. Non-Differentiable Mechanical Model and Its Implications
  8. Bosonization and Fermionization of the Superstring Oscillators
  9. Splitting an Arbitrary Two-Qubit State via a Genuine Six-Qubit Entangled State
  10. Quantum Tasks Using Symmetric Cluster States
  11. Quantum Tasks Using Symmetric Cluster States
  12. Precision Mass Sensing by Tunable Double Optomechanically Induced Transparency with Squeezed Field in a Coupled Optomechanical System
  13. The Effect of Impurities in a Three-Qubit Ising Spin Model
  14. Dyonic String-Like Solution in a Non-Abelian Gauge Theory with Two Potentials
  15. QCD Ghost Dark Energy in RS II Braneworld with Bulk-Brane Interaction
  16. Thermodynamics of the Bulk Viscous Cosmological Fluid in Presence of the Particle Creation Pressure
  17. Dynamics of Relativistic Solitons Due to Pseudo Sine-Gordon Equation
  18. The Lattice and Simplex Structure of States on Pseudo Effect Algebras
  19. Comment on: Supervisory Asymmetric Deterministic Secure Quantum Communication
  20. CPT Groups of Higher Spin Fields
  21. Quantum Information in the Frame of Coherent States Representation
  22. Gravitational Aharonov-Bohm Effect
  23. Non-Classical Traveling Solutions in a Nonlinear Klein Gordon Model
  24. The Quantum and Klein-Gordon Oscillators in a Non-commutative Complex Space and the Thermodynamic Functions
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  26. Absolute Continuity in Noncommutative Measure Theory
  27. The Observer Determination
  28. Viability of Noether Symmetry of F ( R ) Theory of Gravity
  29. Late Time Acceleration in Scalar-Tensor Theory with GB Interaction
  30. Classification of Cosmic Scale Factor via Noether Gauge Symmetries
  31. Quantum Spin Hall Effect in a Triple-Well Quantum Dot System
  32. Comment on “Concrete Representation and Separability Criteria for Symmetric Quantum State”
  33. Minimal Length and the Quantum Bouncer: A Nonperturbative Study
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  35. True Neutrality as a New Type of Flavour
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  37. Classical Model of Confinement
  38. Applications of the Stroboscopic Tomography to Selected 2-Level Decoherence Models
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  40. Description of Phase Transition in a Black Hole with Conformal Anomaly in the Ehrenfest’s Scheme
  41. Two-Fluid Cosmological Models in Kaluza-Klein Space Time
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  43. Kantowski-Sachs Universe Filled with Perfect Fluid in f ( R , T ) Theory of Gravity
  44. Controlled Teleportation of an Arbitrary Three-Qubit State by Using Two Four-Qubit Entangled States
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  63. Coherent States of Quantum Free Particle on the Spherical Space
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