Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/124421
Title: | Interaction-enhanced flow of a polariton superfluid current in a ring |
Author: | Gallemí Camacho, Albert Guilleumas, Montserrat Richaud, M. Minguzzi, A. |
Keywords: | Quasipartícules (Física) Teoria quàntica Quasiparticles (Physics) Quantum theory |
Issue Date: | 5-Sep-2018 |
Publisher: | American Physical Society |
Abstract: | We study the quantum hydrodynamical features of exciton polaritons flowing circularly in a ring-shaped geometry. We consider a resonant-excitation scheme in which the spinor polariton fluid is set into motion in both components by spin-to-orbital angular momentum conversion. We show that this scheme allows us to control the winding number of the fluid and to create two circulating states differing by two units of the angular momentum. We then consider the effect of a disorder potential, which is always present in realistic nanostructures. We discuss how a smooth disorder can be efficiently screened by the polariton-polariton interactions, yielding a signature of polariton superfluidity. This effect is reminiscent of supercurrent in a superconducting loop |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevB.98.104502 |
It is part of: | Physical Review B, 2018, vol. 98, p. 104502 |
URI: | http://hdl.handle.net/2445/124421 |
Related resource: | https://doi.org/10.1103/PhysRevB.98.104502 |
ISSN: | 2469-9950 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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681695.pdf | 1.11 MB | Adobe PDF | View/Open |
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