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How heavy and how strongly interacting are composite fermions?

✍ Scribed by Masaru Onoda; Takahiro Mizusaki; Hideo Aoki

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
95 KB
Volume
12
Category
Article
ISSN
1386-9477

No coin nor oath required. For personal study only.

✦ Synopsis

We have numerically obtained the e ective mass of the composite fermion in the fractional quantum Hall system by ÿtting the low-lying excitation spectrum for ÿnite systems to the Fermi liquid spectrum for composite fermions with Landau parameters for various odd-and even-fraction the Landau level ÿllings and various values of the interaction range. The e ective mass is shown to exhibit a curious staircase-like behavior, while the Landau parameters are anomalous in that they depend on the system size as well as the range.

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