Vector-mean-field theory of the fractional quantum Hall effect

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Single-electron tunneling in the fractional quantum Hall effect-regime

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Superconductivity in the mean-field anyon gas

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Collective charge density wave motion through an ensemble of Aharonov-Bohm rings

We investigate theoretically the collective charge density wave motion through an ensemble of small disordered Aharonov-Bohm rings. It is shown that the magnetic flux modulates the threshold field and the magnetoresistance with a half flux quantum periodicity $\Phi_{0}/2=h/2e$, resulting from ensemble averaging over random scattering phases of multiple rings. The magnitude of the magnetoresistance oscillations decreases rapidly with increasing bias. This is consistent with recent experiments on $NbSe_3$ in presence of columnar defects [Phys. Rev. Lett. 78, 919 (1997)].Comment: 4 pages Revtex, 2 figures. Submitted to Phys. Rev. Let

Non-logarithmic repulsion of transmission eigenvalues in a disordered wire

Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

Strong Effects of Weak Localization in Charge Density Wave/Normal Metal Hybrids

Collective transport through a multichannel disordered conductor in contact with charge-density-wave electrodes is theoretically investigated. The statistical distribution function of the threshold potential for charge-density wave sliding is calculated by random matrix theory. In the diffusive regime weak localization has a strong effect on the sliding motion.Comment: To be published in Physical Review