Electrical control of the uncertainty in the time of single photon emission events

被引:39
作者
Bennett, AJ
Unitt, DC
See, P
Shields, AJ
Atkinson, P
Cooper, K
Ritchie, DA
机构
[1] Toshiba Res Europe Ltd, Cambridge Res Lab, Cambridge CB4 0WE, England
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源
PHYSICAL REVIEW B | 2005年 / 72卷 / 03期
关键词
D O I
10.1103/PhysRevB.72.033316
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report that with appropriate voltage biasing it is possible to reduce the uncertainty in the time at which photons are emitted from a single quantum dot by an arbitrary factor. Using a resonant cavity light-emitting diode, we reduce the photon emission time jitter to one-fifth of the radiative lifetime. This enables us to demonstrate single-photon emission at a repetition rate of 1.07 GHz from both the exciton and biexciton states. This idea may lead to a new method by which pairs of indistinguishable photons can be generated for photonic quantum logic experiments.
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页数:4
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