Quantum information - Source of triggered entangled photon pairs? Reply

被引：1
|
作者：
Stevenson, R. Mark
Young, Robert J.
Atkinson, Paola
Cooper, Ken
Ritchie, David A.
Shields, Andrew J.
机构：
[1] Toshiba Res Europe, Cambridge CB4 0WE, England
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
NATURE | 2007年 / 445卷 / 7124期
关键词：
D O I：
10.1038/nature05547
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We have reported triggered photon-pair emission from single quantum dots that is suggestive of polarization entanglement. Gilchrist et al. criticize our analysis of the density matrix, claiming that the entanglement test is inappropriate. However, we show here that this analysis is in fact valid for an unpolarized source such as ours, and that this analysis (as well as alternative measures of entanglement) suggests that quantum-dot sources do emit entangled photons, and that their quality is rapidly improving. © 2007 Nature Publishing Group.
引用
收藏
页码：E5 / E6
页数：2
相关论文
共 50 条
  • [1] Quantum information - Source of triggered entangled photon pairs?
    Gilchrist, Alexei
    Resch, Kevin J.
    White, Andrew G.
    NATURE, 2007, 445 (7124) : E4 - E5
  • [2] Source of triggered entangled photon pairs? (Reply)
    R. Mark Stevenson
    Robert J. Young
    Paola Atkinson
    Ken Cooper
    David A. Ritchie
    Andrew J. Shields
    Nature, 2007, 445 : E5 - E6
  • [3] Source of triggered entangled photon pairs?
    Alexei Gilchrist
    Kevin J. Resch
    Andrew G. White
    Nature, 2007, 445 : E4 - E5
  • [4] A semiconductor source of triggered entangled photon pairs
    R. M. Stevenson
    R. J. Young
    P. Atkinson
    K. Cooper
    D. A. Ritchie
    A. J. Shields
    Nature, 2006, 439 : 179 - 182
  • [5] A semiconductor source of triggered entangled photon pairs
    Stevenson, RM
    Young, RJ
    Atkinson, P
    Cooper, K
    Ritchie, DA
    Shields, AJ
    NATURE, 2006, 439 (7073) : 179 - 182
  • [6] Entangled photon pairs from a quantum dot source
    Stevenson, R. M.
    Young, R. J.
    Atkinson, P.
    Cooper, K.
    Ritchie, D. A.
    Shields, A. J.
    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 11, 2006, 3 (11): : 3697 - +
  • [7] Nanowire Quantum Dots as an Ideal Source of Entangled Photon Pairs
    Singh, Ranber
    Bester, Gabriel
    PHYSICAL REVIEW LETTERS, 2009, 103 (06)
  • [8] Ultrabright source of entangled photon pairs
    Adrien Dousse
    Jan Suffczyński
    Alexios Beveratos
    Olivier Krebs
    Aristide Lemaître
    Isabelle Sagnes
    Jacqueline Bloch
    Paul Voisin
    Pascale Senellart
    Nature, 2010, 466 : 217 - 220
  • [9] Ultrabright source of entangled photon pairs
    Dousse, Adrien
    Suffczynski, Jan
    Beveratos, Alexios
    Krebs, Olivier
    Lemaitre, Aristide
    Sagnes, Isabelle
    Bloch, Jacqueline
    Voisin, Paul
    Senellart, Pascale
    NATURE, 2010, 466 (7303) : 217 - 220
  • [10] Information communicated by entangled photon pairs
    Brougham, Thomas
    Barnett, Stephen M.
    PHYSICAL REVIEW A, 2012, 85 (03)
12345