Interference of Single Photons from Two Separate Semiconductor Quantum Dots

被引：204

作者：

Flagg, Edward B. ^{[1
]}

Muller, Andreas

Polyakov, Sergey V.

Ling, Alex

Migdall, Alan

Solomon, Glenn S.

机构：

[1] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 13期

关键词：

DEVICE; TIME; ATOM;

D O I：

10.1103/PhysRevLett.104.137401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate and characterize interference between discrete photons emitted by two separate semiconductor quantum dot states in different samples excited by a pulsed laser. Their energies are tuned into resonance using strain. The photons have a total coalescence probability of 18.1% and the coincidence rate is below the classical limit. Postselection of coincidences within a narrow time window increases the coalescence probability to 47%. The probabilities are reduced from unity because of dephasing and the postselection value is also reduced by the detector time response.

引用

页数：4

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