Effects of unbound two-exciton states on entangled photons generated from a cavity biexciton
Effects of unbound two-exciton states on entangled photons generated from a cavity biexciton
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DOI：
10.1002/pssc.200777622
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发表时间：
2008-02
期刊：
影响因子：
--
通讯作者：
H. Oka;H. Ishihara
中科院分区：
文献类型：
--
作者：
H. Oka;H. Ishihara
从理论上研究了平面微腔中双激子产生纠缠光子的过程。当激子-光子耦合与双激子结合能相当时，双激子可以与腔光子稳定耦合（称为腔双激子）。纠缠光子是由腔双激子的级联衰变产生的。我们发现，当实现一个腔双激子和两个由两个非束缚激子态形成的腔极化激元的叠加态时，可以实现高效率的纠缠光子的产生。（© 2008 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆）
We theoretically investigate entangled-photon generation via biexciton in a planar microcavity. When the exciton-photon coupling is comparable to the biexciton binding energy, the biexciton can be stably coupled with the cavity photons (referred to as a cavity biexciton). Entangled photons are generated by the cascade decay of the cavity biexciton. We show that high-efficient generation of entangled photons can be achieved when the superposition state of a cavity biexciton and two cavity polaritons formed by unbound two-exciton states is realized. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)