Transmission of quantum states through disordered channels with dimerized defects

被引：6
作者：
Almeida, Guilherme M. A. [1 ]
Lyra, Marcelo L. [1 ]
de Moura, Francisco A. B. F. [1 ]
机构：
[1] Univ Fed Alagoas, Inst Fis, BR-57072900 Maceio, AL, Brazil
来源：
QUANTUM INFORMATION PROCESSING | 2019年 / 18卷 / 11期
关键词：
Quantum-state transfer; Anderson localization; Correlated disorder; MOBILITY EDGE; LOCALIZATION; ABSENCE; ENTANGLEMENT; DIFFUSION; TRANSPORT;
D O I：
10.1007/s11128-019-2464-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study a quantum-state transfer protocol between two end spins of a disordered spin-1/2 chain. We particularly evaluate the performance of the channel when it is subjected to short-range correlated on-site fluctuations. This is implemented by generating a random distribution of dimer-like defects across the chain featuring a given on-site potential W. By numerically evaluating the system's natural time evolution, we report the possibility of carrying out high-fidelity quantum-state transmission from one end to another given their local frequency is set epsilon similar to W and W is within the energy band of the defectless chain.
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页数：12
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共 63 条
  • [41] Transfer of arbitrary two-qubit states via a spin chain
    Lorenzo, S.
    Apollaro, T. J. G.
    Paganelli, S.
    Palma, G. M.
    Plastina, F.
    [J]. PHYSICAL REVIEW A, 2015, 91 (04):
  • [42] Quantum-state transfer via resonant tunneling through local-field-induced barriers
    Lorenzo, S.
    Apollaro, T. J. G.
    Sindona, A.
    Plastina, F.
    [J]. PHYSICAL REVIEW A, 2013, 87 (04):
  • [43] Single-Particle Mobility Edge in a One-Dimensional Quasiperiodic Optical Lattice
    Luschen, Henrik P.
    Scherg, Sebastian
    Kohlert, Thomas
    Schreiber, Michael
    Bordia, Pranjal
    Li, Xiao
    Das Sarma, S.
    Bloch, Immanuel
    [J]. PHYSICAL REVIEW LETTERS, 2018, 120 (16)
  • [44] Nikolopoulos GM, 2014, QUANT SCI TECH, P1, DOI 10.1007/978-3-642-39937-4
  • [45] Coherent electron wavepacket propagation and entanglement in array of coupled quantum dots
    Nikolopoulos, GM
    Petrosyan, D
    Lambropoulos, P
    [J]. EUROPHYSICS LETTERS, 2004, 65 (03): : 297 - 303
  • [46] Routing quantum information in spin chains
    Paganelli, Simone
    Lorenzo, Salvatore
    Apollaro, Tony J. G.
    Plastina, Francesco
    Giorgi, Gian Luca
    [J]. PHYSICAL REVIEW A, 2013, 87 (06):
  • [47] State transfer in static and dynamic spin chains with disorder
    Petrosyan, David
    Nikolopoulos, Georgios M.
    Lambropoulos, P.
    [J]. PHYSICAL REVIEW A, 2010, 81 (04):
  • [48] LOCALIZATION AND ITS ABSENCE - A NEW METALLIC STATE FOR CONDUCTING POLYMERS
    PHILLIPS, P
    WU, HL
    [J]. SCIENCE, 1991, 252 (5014) : 1805 - 1812
  • [49] Local control of entanglement in a spin chain
    Plastina, Francesco
    Apollaro, Tony J. G.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 99 (17)
  • [50] Dynamics and manipulation of entanglement in coupled harmonic systems with many degrees of freedom
    Plenio, MB
    Hartley, J
    Eisert, J
    [J]. NEW JOURNAL OF PHYSICS, 2004, 6
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