Resonances from perturbed symmetry in open quantum dots.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F01%3A49010035" target="_blank" >RIV/61389005:_____/01:49010035 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Resonances from perturbed symmetry in open quantum dots.

Original language description

We discuss the Nöckel model of an open quantum dot, i.e. a straight hard-wall channel with a potential well. If this potential depends on the longitudinal variable only. There are embedded eigenvalues which turn into resonances if the symmetry is violated, either by applying a magnetic field or by deformation of the well. For a weak symmetry breaking we derive the perturbative expansion of these resonances. We also deduce a sufficient condition under which thediscrete spectrum of such a system (withoutany symmetry) survives the presence of a strong magnetic field. It is satisfied, in particular, if the dot potential is purely attractive.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Report on Mathematical Physics

ISSN

0034-4877

e-ISSN

—

Volume of the periodical

86

Issue of the periodical within the volume

N/A

Country of publishing house

FR - FRANCE

Number of pages

15

Pages from-to

253-267

UT code for WoS article

—

EID of the result in the Scopus database

—