Journal article
The dynamics of quantum criticality revealed by quantum Monte Carlo and holography
Abstract
Understanding the dynamics of quantum systems without long-lived excitations (quasiparticles) constitutes an important yet challenging problem. Although numerical techniques can yield results for the dynamics in imaginary time, their reliable continuation to real time has proved difficult. We tackle this issue using the superfluid–insulator quantum critical point of bosons on a two-dimensional lattice, where quantum fluctuations destroy …
Authors
Witczak-Krempa W; Sørensen ES; Sachdev S
Journal
Nature Physics, Vol. 10, No. 5, pp. 361–366
Publisher
Springer Nature
Publication Date
May 2014
DOI
10.1038/nphys2913
ISSN
1745-2473