Quantum wire junctions breaking time reversal invariance
High Energy Physics - Theory
2014-11-20 v2 Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
Abstract
We explore the possibility to break time reversal invariance at the junction of quantum wires. The universal features in the bulk of the wires are described by the anyon Luttinger liquid. A simple necessary and sufficient condition for the breaking of time reversal invariance is formulated in terms of the scattering matrix at the junction. The phase diagram of a junction with generic number of wires is investigated in this framework. We give an explicit classification of those critical points which can be reached by bosonization and study the interplay between their stability and symmetry content.
Keywords
Cite
@article{arxiv.0907.4221,
title = {Quantum wire junctions breaking time reversal invariance},
author = {Brando Bellazzini and Mihail Mintchev and Paul Sorba},
journal= {arXiv preprint arXiv:0907.4221},
year = {2014}
}
Comments
Extended version (Appendices C and D and some references added, typos corrected) to appear in Phys. Rev. B