Scattering phase of quantum dots: Emergence of universal behavior

We investigate scattering through chaotic ballistic quantum dots in the Coulomb-blockade regime. Focusing on the scattering phase, we show that large universal sequences emerge in the short wavelength limit, where phase lapses of π systematically occur between two consecutive resonances. Our result...

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Bibliographic Details
Authors: Molina, Rafael A., Jalabert, Rodolfo A., Weinmann, Dietmar, Jacquod, Philippe
Format: article
Publication Date:2012
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/72904
Online Access:http://hdl.handle.net/10261/72904
Access Level:Open access
Description
Summary:We investigate scattering through chaotic ballistic quantum dots in the Coulomb-blockade regime. Focusing on the scattering phase, we show that large universal sequences emerge in the short wavelength limit, where phase lapses of Ï€ systematically occur between two consecutive resonances. Our results are corroborated by numerics and are in qualitative agreement with existing experiments. © 2012 American Physical Society.