On the microscopic origin of fractional quantum Hall states with partially filled quasiparticle shells

✍ Scribed by George E. Simion; Kyung-Soo Yi; John J. Quinn; Arkadiusz Wójs

• Book ID: 104084844
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 381 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.08.018

✦ Synopsis

Residual interaction among quasiparticles in partially filled composite Fermion (CF) level and the types of correlations they support are investigated. The pseudopotential describing the interaction between quasielectrons (QEs) as a function of relative angular momentum R is ''subharmonic'' for R ¼ 1. As a consequence the QEs at n QE ¼ 1 3 cannot be Laughlin correlated, but they tend to form pairs or larger clusters. Interpretation of numerical results for small systems can be problematic, because a given value of particle number N and level degeneracy 2' þ 1 can correspond to several different filling factors.