Phase Coherent Dynamics of Hybrid Nanostructures

• Research unit: EU RFP
• Project number: 95.0765

Key words (English)

Hybrid nanostructures; conductors

Alternative project number (English)

EU project number: FMRXCT960042

Research programs (English)

EU-programme: 4. Frame Research Programme - 10.1 Stimulation of training and mobility

Short description (English)

See abstract

Partners and International Organizations (English)

Coordinator: University of Lancaster (UK)

Abstract (English)

An electrically self-consistent theory for hybrid normal superconducting systems has been developed. The theory has been applied to structures in which the normal part of the structure is capacitively coupled to gate, and the ac-transport coefficients have been derived and compared to those of purely normal structure [1].The fractal Brownian motion is investigated with a microscopic random-matrix model and a Langevin equation is derived. The Langevin equation is used to investigate subdiffusion and superdiffusion of a free particle coupled to a fractal heat bath [2].

[1] 'The charge and low-frequency response of normal-superconducting
heterostructures', S. Pilgram, H. Schomerus, A. M. Martin, M Buttiker, Phys. Rev. B (unpublished), cond-mat/0107048.

[2] 'Fractional Langevin equation', E. Lutz, Phys. Rev. E 64 (2001)51106.

References in databases (English)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 95.0765