K. Schoutens. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)
Abstract
The term superfrustration refers to massive ground
state degeneracy in supersymmetric lattice models for
itinerant fermions with strong repulsive interactions,
in dimension D>1. In general, quantum phases of lattice
fermions are hard to track, due to lack of analytic
methods and fundamental difficulties in numerical analysis.
I will show how supersymmetry improves this situation
and leads to exact results on the number and nature of
quantum gound states. Superfrustration is established
by showing that on a variety of 2D lattices the
supersymmetric model has extensive ground state entropy
%0 Book Section
%1 statphys23_1128
%A Schoutens, K.
%B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics
%C Genova, Italy
%D 2007
%E Pietronero, Luciano
%E Loreto, Vittorio
%E Zapperi, Stefano
%K fermions frustration invited statphys23 supersymmetry topic-8
%T Superfrustration of lattice fermions
%U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=1128
%X The term superfrustration refers to massive ground
state degeneracy in supersymmetric lattice models for
itinerant fermions with strong repulsive interactions,
in dimension D>1. In general, quantum phases of lattice
fermions are hard to track, due to lack of analytic
methods and fundamental difficulties in numerical analysis.
I will show how supersymmetry improves this situation
and leads to exact results on the number and nature of
quantum gound states. Superfrustration is established
by showing that on a variety of 2D lattices the
supersymmetric model has extensive ground state entropy
@incollection{statphys23_1128,
abstract = {The term superfrustration refers to massive ground
state degeneracy in supersymmetric lattice models for
itinerant fermions with strong repulsive interactions,
in dimension D>1. In general, quantum phases of lattice
fermions are hard to track, due to lack of analytic
methods and fundamental difficulties in numerical analysis.
I will show how supersymmetry improves this situation
and leads to exact results on the number and nature of
quantum gound states. Superfrustration is established
by showing that on a variety of 2D lattices the
supersymmetric model has extensive ground state entropy},
added-at = {2007-06-20T10:16:09.000+0200},
address = {Genova, Italy},
author = {Schoutens, K.},
biburl = {https://www.bibsonomy.org/bibtex/221cdf0cef044d54eea1989c9b578528d/statphys23},
booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics},
editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano},
interhash = {150826546fce37c53147df9cca72fcec},
intrahash = {21cdf0cef044d54eea1989c9b578528d},
keywords = {fermions frustration invited statphys23 supersymmetry topic-8},
month = {9-13 July},
timestamp = {2007-06-20T10:16:39.000+0200},
title = {Superfrustration of lattice fermions},
url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=1128},
year = 2007
}