Quantum Hall fractions in ultracold atomic vapors

被引：6

作者：

Regnault, N ^{[1
]}

Jolicoeur, T ^{[1
]}

机构：

[1] Lab Pierre Aigrain, Dept Phys, F-75005 Paris, France

来源：

MODERN PHYSICS LETTERS B | 2004年 / 18卷 / 19-20期

关键词：

Bose condensation; composite fermions; quantum Hall effect; vortex lattice;

D O I：

10.1142/S0217984904007530

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Atomic vapors can be prepared and manipulated at very low densities and temperatures. When they are rotating, they can reach a quantum Hall regime in which there should be manifestations of the fractional quantum Hall effect. We discuss the appearance of the principal sequence of fractions v = p/(p +/- 1) for bosonic atoms. The termination point of this series is the paired Moore-Read Pfaffian state. Exotic states fill the gap between the paired state and the vortex lattice expected at high filling of the lowest Landau level. In fermionic vapors, the p-wave scattering typical of ultralow energy collisions leads to the hard-core model when restricted to the lowest Landau level.

引用

页码：1003 / 1012

页数：10

共 31 条

[21]

REGNAULT N, 2004, IN PRESS PHYS REV B

[22]

REGNAULT N, CONDMAT0404093

[23] FERMI-LIQUID-LIKE STATE IN A HALF-FILLED LANDAU-LEVEL [J].