Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time

Details Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time

2005-12-22

arxiv.org/abs/cond-mat/0512592v3

Phys. Rev. Lett. 97, 067004 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.97.067004

The density of states in the semiclassical Andreev billiard is theoretically studied and shown to be determined by the fluctuations of the classical Lyapunov exponent $\lambda$. The rare trajectories with a small value of $\lambda$ give rise to an anomalous increase of the Ehrenfest time $\tau_E\approx |\ln\hbar|/\lambda$ and, consequently, to the appearance of Andreev levels with small excitation energy. The gap in spectrum is obtained and fluctuations of the value of the gap due to different positions of superconducting lead are considered.

Affiliated with

Also associated with

No associations

Rating

Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrum of the Andreev Billiard and Giant Fluctuations of the Ehrenfest Time will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-726149