Polariton spin whirls

P. Cilibrizzi; H. Sigurdsson; T. C.H. Liew; H. Ohadi; S. Wilkinson; A. Askitopoulos; I. A. Shelykh; P. G. Lagoudakis

doi:10.1103/PhysRevB.92.155308

Polariton spin whirls

P. Cilibrizzi, H. Sigurdsson, T. C.H. Liew, H. Ohadi, S. Wilkinson, A. Askitopoulos, I. A. Shelykh, P. G. Lagoudakis

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the observation of spin whirls in a radially expanding polariton condensate formed under nonresonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveals a spiralling polarization pattern in the plane of the microcavity. Simulations of the spatiotemporal dynamics of a spinor condensate reveal the crucial role of polariton interactions with a spinor exciton reservoir. Harnessing spin-dependent interactions between the exciton reservoir and polariton condensates allows for the manipulation of spin currents and the realization of dynamic collective spin effects in solid-state systems.

Original language	English
Article number	155308
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.92.155308
Publication status	Published - 9 Oct 2015

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10.1103/PhysRevB.92.155308

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abstract = "We report on the observation of spin whirls in a radially expanding polariton condensate formed under nonresonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveals a spiralling polarization pattern in the plane of the microcavity. Simulations of the spatiotemporal dynamics of a spinor condensate reveal the crucial role of polariton interactions with a spinor exciton reservoir. Harnessing spin-dependent interactions between the exciton reservoir and polariton condensates allows for the manipulation of spin currents and the realization of dynamic collective spin effects in solid-state systems.",

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doi = "10.1103/PhysRevB.92.155308",

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AU - Cilibrizzi, P.

AU - Sigurdsson, H.

AU - Liew, T. C.H.

AU - Ohadi, H.

AU - Wilkinson, S.

AU - Askitopoulos, A.

AU - Shelykh, I. A.

AU - Lagoudakis, P. G.

PY - 2015/10/9

Y1 - 2015/10/9

N2 - We report on the observation of spin whirls in a radially expanding polariton condensate formed under nonresonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveals a spiralling polarization pattern in the plane of the microcavity. Simulations of the spatiotemporal dynamics of a spinor condensate reveal the crucial role of polariton interactions with a spinor exciton reservoir. Harnessing spin-dependent interactions between the exciton reservoir and polariton condensates allows for the manipulation of spin currents and the realization of dynamic collective spin effects in solid-state systems.

AB - We report on the observation of spin whirls in a radially expanding polariton condensate formed under nonresonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveals a spiralling polarization pattern in the plane of the microcavity. Simulations of the spatiotemporal dynamics of a spinor condensate reveal the crucial role of polariton interactions with a spinor exciton reservoir. Harnessing spin-dependent interactions between the exciton reservoir and polariton condensates allows for the manipulation of spin currents and the realization of dynamic collective spin effects in solid-state systems.

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VL - 92

JO - Physical Review B - Condensed Matter and Materials Physics

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Polariton spin whirls

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