Robust platform for engineering pure-quantum-state transitions in polariton condensates
Robust platform for engineering pure-quantum-state transitions in polariton condensates
复制标题
DOI：
10.1103/physrevb.92.035305
复制
发表时间：
2015-07-16
影响因子：
3.7
通讯作者：
Lagoudakis, P. G.
中科院分区：
文献类型：
--
作者：
Askitopoulos, A.;Liew, T. C. H.;Lagoudakis, P. G.
我们报道了光环形阱中的纯量子态极化激元凝聚。潜在机制的研究表明，极化激元波函数总是聚结在一个单一的纯量子态，违反直觉，总是最高的限制状态与激子水库的最高重叠。这种状态的可调谐性与短极化激元寿命相结合，允许明显不同对称性的相干介观波函数之间的超快跃迁，使光学限制极化激元凝聚体成为一个有前途的应用平台，如多体量子电路和连续变量量子处理。
We report on pure-quantum-state polariton condensates in optical annular traps. The study of the underlying mechanism reveals that the polariton wave function always coalesces in a single pure quantum state that, counterintuitively, is always the uppermost confined state with the highest overlap with the exciton reservoir. The tunability of such states combined with the short polariton lifetime allows for ultrafast transitions between coherent mesoscopic wave functions of distinctly different symmetries, rendering optically confined polariton condensates a promising platform for applications such as many-body quantum circuitry and continuous-variable quantum processing.