From rotating atomic rings to quantum Hall states

From rotating atomic rings to quantum Hall states

Considerable efforts are currently devoted to the preparation of ultracold neutral atoms in the strongly correlated quantum Hall regime. However, the necessary angular momentum is very large and in experiments with rotating traps this means spinning frequencies extremely near to the deconfinement limit; consequently, the required control on parameters turns out to be too stringent. Here we prop...

Quantum Hall States of Rapidly Rotating Bose-Einstein Condensates

This essay is a review of the topic of vortices in rapidly rotating BECs, where the system is in a quantum Hall-like regime and the density profile is of the Thomas-Fermi form. Also, in this paper, deviations from a triangular lattice is being considered while the system condensates into the lowest Landau levels.

Quantum Hall states of bosons in rotating anharmonic traps

Rotating quantum states

Article history: Received 14 April 2014 Received in revised form 13 May 2014 Accepted 15 May 2014 Available online 20 May 2014 Editor: M. Cvetič We revisit the definition of rotating thermal states for scalar and fermion fields in unbounded Minkowski space–time. For scalar fields such states are ill-defined everywhere, but for fermion fields an appropriate definition of the vacuum gives thermal...

Illumination of Quantum Hall States

We show that illumination by continuous white radiation saturates the population of levels so that some of the transitions are not observed. This reduces the number of observable transitions so that the resolution of neighboring transitions is improved. In the case of ν = 11/2 the improved resolution leads to clear observation of zero in the ρxx which appears as a finite resistivity minimum in ...