Condutance Probability Distributions of Quantum Dots with non-Ideal Contatcts

Authors

  • André L. Passos Departamento de Física, Universidade Federal de Sergipe
  • André M. C. Souza Departamento de Física, Universidade Federal de Sergipe

Keywords:

random matrix theory, quantum dots

Abstract

Quantum dots are nanostructures consisting of cavities with classically chaotic dynamics, attached to electron reservoirs by semi-infinite wave guides. We can classify the systems in universality classes due to the presence or not of certain symmetries (time-reversal, spin rotation), where the properties of many different systems are described by universal laws. In this work we study the effect of breaking of timereversal symmetry in the conductance distribution probability as a function of the tunneling barrier transparence attaching the quantum dot to two wave guides with one scattering channel. The distributions were found numerically for different values of the symmetry breaking parameter using the random matrix theory.

How to Cite

Passos, A. L., & Souza, A. M. C. (2011). Condutance Probability Distributions of Quantum Dots with non-Ideal Contatcts. Scientia Plena, 1(5). Retrieved from https://scientiaplena.org.br/sp/article/view/577