Studying a relativistic field theory at finite chemical potential with the density matrix renormalization group
High Energy Physics - Lattice
2014-11-20 v2 High Energy Physics - Theory
Abstract
The density matrix renormalization group is applied to a relativistic complex scalar field at finite chemical potential. The two-point function and various bulk quantities are studied. It is seen that bulk quantities do not change with the chemical potential until it is larger than the minimum excitation energy. The technical limitations of the density matrix renormalization group for treating bosons in relativistic field theories are discussed. Applications to other relativistic models and to nontopological solitons are also suggested.
Keywords
Cite
@article{arxiv.1003.0698,
title = {Studying a relativistic field theory at finite chemical potential with the density matrix renormalization group},
author = {David J. Weir},
journal= {arXiv preprint arXiv:1003.0698},
year = {2014}
}
Comments
9 pages, 5 figures; v2: title changed; references added, conclusions expanded, to be published in PRD