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arXiv 1305.3786cond-mat.mes-hall
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一维通道中的极化子输运

Polariton transport in one-dimensional channels

M. Yu. Petrov, A. V. Kavokin

摘要:

本文从理论上研究了线偏振激子-极化激元在准一维微腔通道中的输运。质量流和自旋流的方向和大小由两个凝聚体的相对相位和偏振控制,就像静止的约瑟夫森效应一样。然而,由于耗散和粒子-粒子相互作用,电流密度是不均匀的:它强烈地依赖于沿通道轴的坐标。在通道中可以产生一个稳定的自旋畴,它的位置对两个相邻凝聚体之间的相位差敏感。

英文摘要:

We study theoretically the transport of linearly polarized exciton-polaritons in a quasi one-dimensional microcavity channel separating two polariton condensates generated by optical pumping. The direction and value of mass and spin currents are controlled by the relative phase and polarisation of two condensates, as in the stationary Josephson effect. However, due to dissipation and particle-particle interactions, the current denisty is inhomogeneous: it strongly depends on the coordinate along the axis of the channel. A stationary spin domain can be created in the channel, its position would be sensitive to the phase difference between two bordering condensates.

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