Non-Markovian effects in waveguide-mediated entanglement

被引：77
作者：
Gonzalez-Ballestero, C. [1 ]
Garcia-Vidal, F. J. [1 ]
Moreno, Esteban [1 ]
机构：
[1] Univ Autonoma Madrid, Matter Phys Ctr IFIMAC, Dept Fis Teorica Mat Condensada & Condensed, E-28049 Madrid, Spain
来源：
NEW JOURNAL OF PHYSICS | 2013年 / 15卷
基金：
欧洲研究理事会;
关键词：
QUANTUM ELECTRODYNAMICS; PLASMONS; STATES;
D O I：
10.1088/1367-2630/15/7/073015
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the generation and evolution of entanglement between two qubits coupled through one-dimensional waveguide modes. By using a complete quantum electrodynamical formalism we go beyond the Markovian approximation. The diagonalization of the Hamiltonian is carried out, and a set of quasi-localized eigenstates is found. We show that when the qubit-waveguide coupling is increased, the Markov approximation is no longer valid, and the generation of entanglement is worsened.
引用
收藏
页数：18
相关论文
共 52 条
[1]   Generation of single optical plasmons in metallic nanowires coupled to quantum dots [J].
Akimov, A. V. ;
Mukherjee, A. ;
Yu, C. L. ;
Chang, D. E. ;
Zibrov, A. S. ;
Hemmer, P. R. ;
Park, H. ;
Lukin, M. D. .
NATURE, 2007, 450 (7168) :402-406
[2]   LOCALIZED MAGNETIC STATES IN METALS [J].
ANDERSON, PW .
PHYSICAL REVIEW, 1961, 124 (01) :41-&
[3]   Purcell factor for a point-like dipolar emitter coupled to a two-dimensional plasmonic waveguide [J].
Barthes, J. ;
Francs, G. Colas des ;
Bouhelier, A. ;
Weeber, J. -C. ;
Dereux, A. .
PHYSICAL REVIEW B, 2011, 84 (07)
[4]   Single-photon all-optical switching using waveguide-cavity quantum electrodynamics [J].
Bermel, Peter ;
Rodriguez, Alejandro ;
Johnson, Steven G. ;
Joannopoulos, John D. ;
Soljacic, Marin .
PHYSICAL REVIEW A, 2006, 74 (04)
[5]   Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation [J].
Blais, A ;
Huang, RS ;
Wallraff, A ;
Girvin, SM ;
Schoelkopf, RJ .
PHYSICAL REVIEW A, 2004, 69 (06) :062320-1
[6]   Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology [J].
Bogaerts, W ;
Baets, R ;
Dumon, P ;
Wiaux, V ;
Beckx, S ;
Taillaert, D ;
Luyssaert, B ;
Van Campenhout, J ;
Bienstman, P ;
Van Thourhout, D .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2005, 23 (01) :401-412
[7]   Quantum optics with surface plasmons [J].
Chang, D. E. ;
Sorensen, A. S. ;
Hemmer, P. R. ;
Lukin, M. D. .
PHYSICAL REVIEW LETTERS, 2006, 97 (05)
[8]   A single-photon transistor using nanoscale surface plasmons [J].
Chang, Darrick E. ;
Sorensen, Anders S. ;
Demler, Eugene A. ;
Lukin, Mikhail D. .
NATURE PHYSICS, 2007, 3 (11) :807-812
[9]   Coherent transport of nanowire surface plasmons coupled to quantum dots [J].
Chen, Wei ;
Chen, Guang-Yin ;
Chen, Yueh-Nan .
OPTICS EXPRESS, 2010, 18 (10) :10360-10368
[10]   Circuit-QED: How strong can the coupling between a Josephson junction atom and a transmission line resonator be? [J].
Devoret, Michel ;
Girvin, Steven ;
Schoelkopf, Robert .
ANNALEN DER PHYSIK, 2007, 16 (10-11) :767-779
123456