标题： 偶极激子系统中的自动定位 显示英文标题

标题： Autolocalization in a dipolar exciton system

摘要： 我们发展了最近在[Andreev, Phys. Rev. Lett. 110, 146401 (2013)]中提出的自定位假设，以解释半导体量子阱中宏观有序激子态(MOES)[L. V. Butov 等, Nature (London) 418, 751 (2002)]的形成。我们认为，在除了长程偶极排斥外，激子在短距离表现出共振配对的系统中，周期性定位势的出现具有宏观空间周期是可能的。我们的理论表明，MOES中每个凝聚体的中心非相干部分可能代表一种新的量子分子相，该相几年前在共振玻色超流体的背景下被预测和讨论过。 显示英文摘要

摘要： We develop the autolocalization hypothesis suggested recently in [Andreev, Phys. Rev. Lett. 110, 146401 (2013)] to explain the formation of the macroscopically ordered exciton state (MOES) in semiconductor quantum wells [L. V. Butov et al., Nature (London) 418, 751 (2002)]. We argue that the onset of a periodical localizing potential having a macroscopic spatial period is possible in the systems where in addition to long-range dipolar repulsion the excitons exhibit resonant pairing at short distances. Our theory suggests, that the central incoherent part of each condensate in the MOES may represent a novel quantum molecular phase, which was predicted and discussed theoretically several years ago in the context of resonant Bose superfluids.