Cavity-assisted emission of polarization-entangled photons from biexcitons in quantum dots with fine-structure splitting

被引：41

作者：

Schumacher, Stefan ^{[1
,2
]}

Foerstner, Jens ^{[1
,2
]}

Zrenner, Artur ^{[1
,2
]}

Florian, Matthias ^{[3
]}

Gies, Christopher ^{[3
]}

Gartner, Paul ^{[3
,4
]}

Jahnke, Frank ^{[3
]}

机构：

[1] Univ Paderborn, Dept Phys, D-33098 Paderborn, Germany

[2] Univ Paderborn, Ctr Optoelect & Photon Paderborn CeOPP, D-33098 Paderborn, Germany

[3] Univ Bremen, Inst Theoret Phys, D-28334 Bremen, Germany

[4] Natl Inst Mat Phys, Bucharest, Romania

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 05期

关键词：

D O I：

10.1364/OE.20.005335

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the quantum properties and statistics of photons emitted by a quantum-dot biexciton inside a cavity. In the biexciton-exciton cascade, fine-structure splitting between exciton levels degrades polarization-entanglement for the emitted pair of photons. However, here we show that the polarization-entanglement can be preserved in such a system through simultaneous emission of two degenerate photons into cavity modes tuned to half the biexciton energy. Based on detailed theoretical calculations for realistic quantum-dot and cavity parameters, we quantify the degree of achievable entanglement. (C) 2012 Optical Society of America

引用

页码：5335 / 5342

页数：8

共 28 条

[1] Regulated and entangled photons from a single quantum dot [J].

Benson, O ;

Santori, C ;

Pelton, M ;

Yamamoto, Y .

PHYSICAL REVIEW LETTERS, 2000, 84 (11) :2513-2516

[2] Analytical solution of the quantum-state tomography of the biexciton cascade in semiconductor quantum dots: Pure dephasing does not affect entanglement [J].

Carmele, Alexander ;

Knorr, Andreas .

PHYSICAL REVIEW B, 2011, 84 (07)

[3] Formation dynamics of an entangled photon pair: A temperature-dependent analysis [J].

Carmele, Alexander ;

Milde, Frank ;

Dachner, Matthias-Rene ;

Harouni, Malek Bagheri ;

Roknizadeh, Rasoul ;

Richter, Marten ;

Knorr, Andreas .

PHYSICAL REVIEW B, 2010, 81 (19)

[4]

Carmichael H. J., 2002, Statistical Methods in Quantum Optics, V1

[5] Generation of a two-photon state from a quantum dot in a microcavity [J].

del Valle, E. ;

Gonzalez-Tudela, A. ;

Cancellieri, E. ;

Laussy, F. P. ;

Tejedor, C. .

NEW JOURNAL OF PHYSICS, 2011, 13

[6] Ultrabright source of entangled photon pairs [J].

Dousse, Adrien ;

Suffczynski, Jan ;

Beveratos, Alexios ;

Krebs, Olivier ;

Lemaitre, Aristide ;

Sagnes, Isabelle ;

Bloch, Jacqueline ;

Voisin, Paul ;

Senellart, Pascale .

NATURE, 2010, 466 (7303) :217-220

[7] Entangled photons: Generation, observation, and characterization [J].

Edamatsu, Keiichi .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (11) :7175-7187

[8] Two-photon coherent control of a single quantum dot [J].

Flissikowski, T ;

Betke, A ;

Akimov, IA ;

Henneberger, F .

PHYSICAL REVIEW LETTERS, 2004, 92 (22) :227401-1

[9] Manipulating exciton fine structure in quantum dots with a lateral electric field [J].

Gerardot, B. D. ;

Seidl, S. ;

Dalgarno, P. A. ;

Warburton, R. J. ;

Granados, D. ;

Garcia, J. M. ;

Kowalik, K. ;

Krebs, O. ;

Karrai, K. ;

Badolato, A. ;

Petroff, P. M. .

APPLIED PHYSICS LETTERS, 2007, 90 (04)

[10] Triggered polarization-entangled photon pairs from a single quantum dot up to 30K [J].

Hafenbrak, R. ;

Ulrich, S. M. ;

Michler, P. ;

Wang, L. ;

Rastelli, A. ;

Schmidt, O. G. .

NEW JOURNAL OF PHYSICS, 2007, 9

← 1 2 3 →