@ARTICLE{ISI:000089996600040,
  author = {Cserti, J and Vattay, G and Koltai, J and Taddei, F and Lambert,
	C J},
  title = {Negative length orbits in normal-superconductor billiard systems},
  journal = {Physical Review Letters},
  year = {2000},
  volume = {85},
  pages = {3704-3707},
  number = {17},
  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.},
  issn = {0031-9007},
  keywords = {Transport ; Andreev reflection ; semiclassical},
  mount = {OCT 23},
  unique-id = {ISI:000089996600040},
  url = {http://prola.aps.org/pdf/PRL/v85/i17/p3704_1}
}