Kinematics and rotation of a vortex lattice in a polariton fluid

Panico, R. and Macorini, G. and Dominici, L. and De Giorgi, M. and Gigli, G. and Sanvitto, D. and Ballarini, D. and Lanotte, A. S. (2022) Kinematics and rotation of a vortex lattice in a polariton fluid. Il nuovo cimento C, 45 (6). pp. 1-4. ISSN 1826-9885

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Abstract

We study the kinematic properties of a rotating vortex lattice imprinted on a freely expanding polariton quantum fluid. Thanks to the optical component of polaritons, we can directly measure the phase and modulus of the complex-valued macroscopic wavefunction, and extract the velocity and angular momentum profiles across the condensate. These are in agreement with quantisation prescription, although the non-uniform and unsteady background density profile may induce corrections to the vortex trajectories, and result into fractional orbital angular momentum per particle.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 06 Sep 2022 13:14
Last Modified: 06 Sep 2022 13:14
URI: http://eprints.bice.rm.cnr.it/id/eprint/22061

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