AW Sandvik - arXiv preprint arXiv:1909.10591, 2019 - arxiv.org
The Stochastic Series Expansion (SSE) technique is a quantum Monte Carlo method that is especially efficient for many quantum spin systems and boson models. It was the first …
YR Shu, SK Jian, S Yin - Physical Review Letters, 2022 - APS
Deconfined quantum critical point (DQCP) characterizes a kind of exotic phase transition beyond the usual Landau-Ginzburg-Wilson paradigm. Here we study the nonequilibrium …
Emergent symmetry is one of the characteristic phenomena in deconfined quantum critical points (DQCP). As its nonequilibrium generalization, the dual dynamic scaling was recently …
YR Shu, S Yin, DX Yao - Physical Review B, 2017 - APS
We investigate the short-time quantum critical dynamics in the imaginary-time relaxation processes of finite-size systems. Universal scaling behaviors exist in the imaginary-time …
Within the ground-state auxiliary-field quantum Monte Carlo technique, we introduce discrete Hubbard-Stratonovich transformations (HSTs) that are also suitable for spatially …
L Dao, H Shao, AW Sandvik - arXiv preprint arXiv:2408.06749, 2024 - arxiv.org
We study the excitation spectrum of the $ S= 1/2$ Heisenberg model on the randomly diluted square lattice by analytic continuation of QMC data. At dilution fractions $ p= 1/16 …
Theoretical studies of quantum phase transitions have suggested critical points with higher symmetries than those of the underlying Hamiltonian. Here we demonstrate a surprising …