1D valence bond solids in a magnetic field
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Published version
Accepted manuscript
Date
2015
Authors
Iaizzi, Adam
Sandvik, Anders W.
Version
OA Version
Citation
Iaizzi, Adam, and Anders W. Sandvik. "1D valence bond solids in a magnetic field." Journal of Physics: Conference Series 640 (2015) 012043
Abstract
A Valence bond solid (VBS) is a nonmagnetic, long-range ordered state of a quantum spin system where local spin singlets are formed in some regular pattern. We here study the competition between VBS order and a fully polarized ferromagnetic state as function of an external magnetic field in a one-dimensional extended Heisenberg model---the J-Q2 model---using stochastic series expansion quantum Monte Carlo simulations with directed loop updates. We discuss the ground state phase diagram.
Description
Presented at XXVI IUPAP Conference on Computational Physics (CCP2014)
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