Pairing and condensation of Laughlin quasiparticles in fractional quantum Hall systems

TL;DR

This paper proposes that Laughlin quasiparticles in fractional quantum Hall systems can form pairs and condense into new correlated states, explaining recently observed fractional quantum Hall fractions.

Contribution

It introduces a novel pairing mechanism for quasiparticles and suggests these pairs form condensed states with Laughlin correlations, accounting for new experimental fractions.

Findings

Quasiparticles can form pairs based on their interaction pseudopotentials.

Paired quasiparticles can create condensed states with Laughlin correlations.

The proposed states explain recently observed fractional quantum Hall fractions.

Abstract

From the analysis of their interaction pseudopotentials, it is argued that (at certain filling factors) Laughlin quasiparticles can form pairs. It is further proposed that such pairs could have Laughlin correlations with one another and form condensed states of a new type. The sequence of fractions corresponding to these states includes all new fractions observed recently in experiment (e.g., \nu=5/13, 3/8, or 4/11).