Home > Research > Publications & Outputs > Negative Length Orbits in Normal-Superconductor...

Links

Text available via DOI:

View graph of relations

Negative Length Orbits in Normal-Superconductor Billiard Systems.

Research output: Contribution to journalJournal article

Published
Close
<mark>Journal publication date</mark>2000
<mark>Journal</mark>Physical Review Letters
Issue number17
Volume85
Number of pages4
Pages (from-to)3704-3707
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

The path-length spectra of mesoscopic systems including diffractive scatterers and connected to a superconductor are studied theoretically. We show that the spectra differ fundamentally from that of normal systems due to the presence of Andreev reflection. It is shown that negative path lengths should arise in the spectra as opposed to the normal system. To highlight this effect we carried out both quantum mechanical and semiclassical calculations for the simplest possible diffractive scatterer. The most pronounced peaks in the path-length spectra of the reflection amplitude are identified by the routes that the electron and/or hole travels.