For intermediate Coulomb energy to Fermi energy ratios r_s, spinless fermions in a random potential form a new quantum phase which is different from the Fermi glass and the Wigner crystal. From a numerical study of small clusters, we show that this phase is characterized by an ordered flow of enhanced persistent currents and occurs for r_s values where a metallic phase has been observed in two dimensions.

A new quantum phase in two dimesions

BENENTI, GIULIANO;
1999

Abstract

For intermediate Coulomb energy to Fermi energy ratios r_s, spinless fermions in a random potential form a new quantum phase which is different from the Fermi glass and the Wigner crystal. From a numerical study of small clusters, we show that this phase is characterized by an ordered flow of enhanced persistent currents and occurs for r_s values where a metallic phase has been observed in two dimensions.
9782868835062
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/18789
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