Universal Parametric Correlations of Conductance Peaks in Quantum Dots

Дата и время публикации : 1996-04-11T01:56:15Z

Авторы публикации и институты :
Y. Alhassid
H. Attias

Ссылка на журнал-издание: Phys. Rev. Lett. 76 (1996) 1711
Коментарии к cтатье: 12 pages, RevTex, 2 Postscript figures
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We compute the parametric correlation function of the conductance peaks in chaotic and weakly disordered quantum dots in the Coulomb blockade regime and demonstrate its universality upon an appropriate scaling of the parameter. For a symmetric dot we show that this correlation function is affected by breaking time-reversal symmetry but is independent of the details of the channels in the external leads. We derive a new scaling which depends on the eigenfunctions alone and can be extracted directly from the conductance peak heights. Our results are in excellent agreement with model simulations of a disordered quantum dot.

Category: Physics