Fractional quantum Hall effect of a rapidly rotating gas of ultracold bosonic atoms

Author:

Ammar M. Ahmed1,Boucherf S.1

Affiliation:

1. Department of Physics, University of Medea, Laboratory of Physics of Experimental Techniques and their Applications , Médéa 26000, Algeria

Abstract

The long-term goal of our study is to perform a simulation on a rapidly rotating gas of ultracold bosonic atoms. When the rotation frequency is close to the harmonic trap frequency, the trapping force is compensated by the centrifugal force and only the Coriolis force remains, analogous to the Lorentz force. The quantum Hall effect regime is reached when the number of vortices is larger than the number of atoms. In this work, we demonstrate a variety of excitations of the fractional quantum Hall states of composite fermions and ultracold two-dimensional rapidly rotating bosonic atoms. Second, we can also check directly whether there is a relationship between these two phenomena by calculating the energy of N = 8 bosons in the ground state of the harmonic oscillator and a few-boson elementary excitations for the Bose–Laughlin state at the half filling factor.

Publisher

AIP Publishing

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