Overcoming phonon-induced dephasing for indistinguishable photon sources

被引：8
作者：
Close, Tom [1 ]
Gauger, Erik M. [1 ,2 ]
Lovett, Brendon W. [1 ,3 ]
机构：
[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
[2] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore
[3] Heriot Watt Univ, Sch Engn & Phys Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland
来源：
NEW JOURNAL OF PHYSICS | 2012年 / 14卷
基金：
新加坡国家研究基金会; 英国工程与自然科学研究理事会;
关键词：
SINGLE; EMISSION; CAVITY;
D O I：
10.1088/1367-2630/14/11/113004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Reliable single photon sources constitute the basis of schemes for quantum communication and measurement based quantum computing. Solid state single photon sources based on quantum dots are convenient and versatile but the electronic transitions that generate the photons are subject to interactions with lattice vibrations. Using a microscopic model of electron-phonon interactions and a quantum master equation, we here examine phonon-induced decoherence and assess its impact on the rate of production, and indistinguishability, of single photons emitted from an optically driven quantum dot system. We find that, above a certain threshold of desired indistinguishability, it is possible to mitigate the deleterious effects of phonons by exploiting a three-level Raman process for photon production.
引用
收藏
页数：17
相关论文
共 39 条
[1]   Controlling the dynamics of a coupled atom-cavity system by pure dephasing [J].
Auffeves, A. ;
Gerace, D. ;
Gerard, J. -M. ;
Santos, M. Franca ;
Andreani, L. C. ;
Poizat, J. -P. .
PHYSICAL REVIEW B, 2010, 81 (24)
[2]   Efficient high-fidelity quantum computation using matter qubits and linear optics [J].
Barrett, SD ;
Kok, P .
PHYSICAL REVIEW A, 2005, 71 (06)
[3]  
Bennett C. H., 1983, P IEEE INT C COMP SY, P175
[4]   Two-Photon Quantum Interference from Separate Nitrogen Vacancy Centers in Diamond [J].
Bernien, Hannes ;
Childress, Lilian ;
Robledo, Lucio ;
Markham, Matthew ;
Twitchen, Daniel ;
Hanson, Ronald .
PHYSICAL REVIEW LETTERS, 2012, 108 (04)
[5]   Proposal for teleportation of an atomic state via cavity decay [J].
Bose, S ;
Knight, PL ;
Plenio, MB ;
Vedral, V .
PHYSICAL REVIEW LETTERS, 1999, 83 (24) :5158-5161
[6]  
Breuer H.-P., 2007, The Theory of Open Quantum Systems
[7]   Controlled single-photon emission from a single trapped two-level atom [J].
Darquié, B ;
Jones, MPA ;
Dingjan, J ;
Beugnon, J ;
Bergamini, S ;
Sortais, Y ;
Messin, G ;
Browaeys, A ;
Grangier, P .
SCIENCE, 2005, 309 (5733) :454-456
[8]   QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].
EKERT, AK .
PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663
[9]   Controlling the spontaneous emission rate of single quantum dots in a two-dimensional photonic crystal [J].
Englund, D ;
Fattal, D ;
Waks, E ;
Solomon, G ;
Zhang, B ;
Nakaoka, T ;
Arakawa, Y ;
Yamamoto, Y ;
Vuckovic, J .
PHYSICAL REVIEW LETTERS, 2005, 95 (01)
[10]   Interference of Single Photons from Two Separate Semiconductor Quantum Dots [J].
Flagg, Edward B. ;
Muller, Andreas ;
Polyakov, Sergey V. ;
Ling, Alex ;
Migdall, Alan ;
Solomon, Glenn S. .
PHYSICAL REVIEW LETTERS, 2010, 104 (13)
1234