Smeared quantum phase transition in the dissipative random quantum Ising model
Strongly Correlated Electrons
2010-01-18 v2 Disordered Systems and Neural Networks
Abstract
We investigate the quantum phase transition in the random transverse-field Ising model under the influence of Ohmic dissipation. To this end, we numerically implement a strong-disorder renormalization-group scheme. We find that Ohmic dissipation destroys the quantum critical point and the associated quantum Griffiths phase by smearing. Our results quantitatively confirm a recent theory [Phys. Rev. Lett. {\bf 100}, 240601 (2008)] of smeared quantum phase transitions.
Keywords
Cite
@article{arxiv.0811.3754,
title = {Smeared quantum phase transition in the dissipative random quantum Ising model},
author = {Thomas Vojta and J. A. Hoyos},
journal= {arXiv preprint arXiv:0811.3754},
year = {2010}
}
Comments
7 pages, 10 eps figures embedded, final version as published