Mesoscopic Luttinger Liquid Theory in an Aharonov-Bohm Ring

Details Mesoscopic Luttinger Liquid Theory in an Aharonov-Bohm Ring Mesoscopic Luttinger Liquid Theory in an Aharonov-Bohm Ring

2001-11-07

arxiv.org/abs/cond-mat/0111102v2

Phys. Rev. B 66, 193308 (2002)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures. Version to appear in PRB

Scientific paper

10.1103/PhysRevB.66.193308

A careful study on the mesoscopic PC in a Luttinger liquid ring is carried out. It is shown that discreteness plays an important role in calculating the PC caused by the magnetic flux. At zero temperature, the current is shown to be independent of the interaction even when $g=g_2-g_4$ is not zero. The current becomes enhanced at finite temperatures comparing to the non-interacting case, when the parameter g is positive.

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