Effective polariton-polariton interactions of cavity-embedded two-dimensional electron gases

Luc Nguyen-the; Simone De Liberato; Motoaki Bamba; Cristiano Ciuti

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Effective polariton-polariton interactions of cavity-embedded two-dimensional electron gases

机译：嵌入腔的二维电子气的有效极化子-极化子相互作用

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Intersubband polaritons are light-matter excitations originating from the strong coupling between an intersubband quantum well electronic transition and a microcavity photon mode. In this paper, we study how the Coulomb electron-electron interaction and the Pauli saturation of the electronic transitions affect the physics of intersubband polaritons. We develop a microscopic many-body theory for the physics of such composite bosonic excitations in a microcavity-embedded two-dimensional electron gas. As a first application, we calculate the modification of the depolarization shift and the efficiency of intersubband polariton-polariton scattering processes, which is large enough to induce interesting nonlinear optical effects in the mid- and far-infrared.

机译：子带间极化子是光子激发，其源于子带间量子阱电子跃迁与微腔光子模式之间的强耦合。在本文中，我们研究了库仑电子相互作用和电子跃迁的保利饱和度如何影响子带间极化子的物理性质。我们为嵌入微腔的二维电子气中的此类复合玻色子激发的物理学发展了微观多体理论。作为第一个应用程序，我们计算了去极化偏移和子带间极化子-极化子散射过程的效率的修改，该修改足够大，可以在中红外和远红外中引起有趣的非线性光学效应。

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《Physical review》 |2013年第23期|235322.1-235322.12|共12页
作者
Luc Nguyen-the; Simone De Liberato; Motoaki Bamba; Cristiano Ciuti;
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Laboratoire Materiaux et Phenomenes Quantiques, Universite Paris Diderot-Paris 7, CNRS, UMR 7162, 75013 Paris, France;

Laboratoire Materiaux et Phenomenes Quantiques, Universite Paris Diderot-Paris 7, CNRS, UMR 7162, 75013 Paris, France,School of Physics and Astronomy, University of Southampton, Southampton, SO171BJ, United Kingdom;

Laboratoire Materiaux et Phenomenes Quantiques, Universite Paris Diderot-Paris 7, CNRS, UMR 7162, 75013 Paris, France,Department of Physics, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan;

Laboratoire Materiaux et Phenomenes Quantiques, Universite Paris Diderot-Paris 7, CNRS, UMR 7162, 75013 Paris, France;

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Effective polariton-polariton interactions of cavity-embedded two-dimensional electron gases

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