径向磁场作用下双量子阱中二维激子玻色凝聚的规范场旋转
Gauge-field rotation of 2D exciton Bose condensate in double quantum well by radial magnetic field
摘要：
本文表明，径向磁场导致玻色凝聚态激子云的旋转，这是由于电子和空穴形成激子的Aharonov-Bohm效应。就像超流体的机械旋转一样，旋转伴随着涡旋在某个临界磁场下穿透到云中。涡旋的穿透强烈地影响激子云光致发光的总强度和角分布。这种效应可以作为激子玻色凝聚的一种有效的实验表现。
英文摘要：
Here it is shown that a radial magnetic field leads to rotation of a Bose condensed exciton cloud due to Aharonov-Bohm effect for an electron and a hole forming an exciton. As in the case of mechanical rotation of superfluids, rotation is accompanied by penetration of vortices into the cloud at some critical magnetic field. Penetration of vortices strongly affects the total intensity and the angular distribution of photoluminescence from the exciton cloud. This effect can be used for an effective experimental manifestation of exciton Bose condensation.
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