INSENSITIVITY TO TIME-REVERSAL SYMMETRY-BREAKING OF UNIVERSAL CONDUCTANCE FLUCTUATIONS WITH ANDREEV REFLECTION

Authors
BROUWER PW BEENAKKER CWJ
Citation
Pw. Brouwer et Cwj. Beenakker, INSENSITIVITY TO TIME-REVERSAL SYMMETRY-BREAKING OF UNIVERSAL CONDUCTANCE FLUCTUATIONS WITH ANDREEV REFLECTION, Physical review. B, Condensed matter, 52(23), 1995, pp. 16772-16775
Citations number
28
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
23
Year of publication
1995
Pages
16772 - 16775
Database
ISI
SICI code
0163-1829(1995)52:23<16772:ITTSOU>2.0.ZU;2-P
Abstract
Numerical simulations of conduction through a disordered microbridge b etween a normal metal and a superconductor have revealed an anomalous insensitivity of the conductance fluctuations to a magnetic field. A t heory for the anomaly is presented: both an exact analytical calculati on (using random-matrix theory) and a qualitative symmetry argument (i nvolving the exchange of time-reversal for reflection symmetry).