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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

10.1007/s00429-012-0394-5

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1572-9575

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Performance Improvement of Twoway Quantum Key Dis

Authors: Chenyang Li Ruihang Miao Xinbao Gong Ying Guo Guangqiang He
Publish Date: 2015/11/18
Volume: 55, Issue: 4, Pages: 2199-2211
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Abstract

We show the successful use of a heralded noiseless linear amplifier on the detection stage in the twoway continuousvariable quantum key distribution to improve the performance Due to the excess noise the secretkey rate of the twoway protocol becomes negative for a certain distance of transmission The use of a heralded noiseless linear amplifier increases this distance by the equivalent of 20 log10 g dB of losses and it also helps the twoway protocol tolerate more excess noiseThis work is supported by the National Natural Science Foundation of China Grant Nos 61475099 61102053 61379153 Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices NoKF201405 the Scientific Research Foundation for the Returned Overseas Scholars State Education Ministry SMC Excellent Young Faculty program SJTU 2011 ChunTsung Program of SJTU and PRP Grant No T03023051

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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
  25. The Quantum and Klein-Gordon Oscillators in a Non-commutative Complex Space and the Thermodynamic Functions
  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
  34. Einstein Gravity in Almost Kähler Variables and Stability of Gravity with Nonholonomic Distributions and Nonsymmetric Metrics
  35. True Neutrality as a New Type of Flavour
  36. Geometric Phase of Quantum Dots in the Time-Dependent Isotropic Magnetic Field
  37. Classical Model of Confinement
  38. Applications of the Stroboscopic Tomography to Selected 2-Level Decoherence Models
  39. New Properties of the Wigner Function of the Tripartite Entangled State
  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
  42. Separability Criterion for Arbitrary Multipartite Pure State Based on the Rank of Reduced Density Matrix
  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
  45. The Local Unitary Equivalence of Multipartite Pure States
  46. Stochastic Perturbation of Power Law Optical Solitons
  47. Equivalence Between Two Different Field-Dependent BRST Formulations
  48. Bouncing Universe and Phantom Crossing in Modified Gravity Coupled with Weyl Tensor
  49. Global-Local Algebraic Quantization of a Two-Dimensional Non-Hermitian Potential
  50. A Braneworld Dark Energy Model with Induced Gravity and the Gauss-Bonnet Effect
  51. Heat-to-Work Conversion by Exploiting Full or Partial Correlations of Quantum Particles
  52. An Alternative Map from a 2 + 1 Dimensional Charged Dirac Oscillator in the Background of a Uniform Perpendicular Magnetic Field to a Quantum Optics Model
  53. Higher Dimensional Cosmology with Some Dark Energy Models in Emergent, Logamediate and Intermediate Scenarios of the Universe
  54. Perfect-Fluid Sources for the Levi-Civita Metric II
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  56. Efficient Entanglement Concentration for Arbitrary Less-Entangled N -Atom GHZ State
  57. Time and Spacetime: The Crystallizing Block Universe
  58. Dark Energy in Weyl- f ( R ) Gravity
  59. On Verification of the Non-Generational Conjectural-Derivation of First Class Constraints: HP Monopole’s Field Case
  60. Dark Energy in Weyl- f ( R ) Gravity
  61. The Transformation Properties at the Quantum Level in Field Theories for a Gauge-Invariant System with a Higher-Order Lagrangian
  62. Time Dependence of Joint Entropy of Oscillating Quantum Systems
  63. Coherent States of Quantum Free Particle on the Spherical Space
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  65. Weak Measurements Destroy Too Much Quantum Correlation
  66. Quantification of Quantum Entanglement in a Multiparticle System of Two-Level Atoms Interacting with a Squeezed Vacuum State of the Radiation Field
  67. Magnetic Flux Quantization of the Landau Problem
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  71. Space-Time Curvature Induced by Quantum Vacuum Fluctuations as an Alternative to Dark Energy
  72. The Electric Charge Confining in Polyakov’s Compact QED in R 4
  73. A General Method of Selecting Quantum Channel for Bidirectional Quantum Teleportation
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  76. Hawking Radiation of the Charged Particle via Tunneling from the Kaluza-Klein Black Hole
  77. Geometric Measure of Quantum Discord for Entanglement of Total Dirac Fields in Noninertial Frames
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  79. Bounded Solutions of the Dirac Equation with a PT-symmetric Kink-Like Vector Potential in Two-Dimensional Space-Time
  80. Archaic Universe and Cosmological Model: “Big-Bang” as Nucleation by Vacuum
  81. Bianchi Type V Viscous Fluid Cosmological Models with Varying Cosmological Term
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  88. Statistical Entropy of Vaidya-de Sitter Black Hole to All Orders in Planck Length
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