Journal
PHYSICAL REVIEW B
Volume 80, Issue 20, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.201303
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Funding
- Agence Nationale de la Recherche [ANR-JCJC-0003-01]
- NSF [PHY0551164]
- European Commission
- Marie Curie Foundation [MEST CT 2004-51-4307]
- Serbian Ministry of Science [141035]
- Microsoft Q Research
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We analyze transitions between quantum Hall ground states at prominent filling factors nu in the spherical geometry by tuning the width parameter of the Zhang-Das Sarma interaction potential. We find that incompressible ground states evolve adiabatically under this tuning, whereas the compressible ones are driven through a first-order phase transition. Overlap calculations show that the resulting phase is increasingly well described by appropriate analytic model wave functions (Laughlin, Moore-Read, Read-Rezayi). This scenario is shared by both odd (nu n= 1/3, 1/5, 3/5, 7/3, 11/5, 13/5) and even denominator states (nu= 1/2, 1/4, 5/2, 9/4). In particular, the Fermi-liquid-like state at nu = 1/2 gives way, at large enough value of the width parameter, to an incompressible state identified as the Moore-Read Pfaffian on the basis of its entanglement spectrum.
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