Imaginary-time relaxation quantum critical dynamics in two-dimensional dimerized Heisenberg model
arXiv:2403.09084 · doi:10.1103/PhysRevB.109.184303
Abstract
We study the imaginary-time relaxation critical dynamics of the Neel-paramagnetic quantum phase transition in the two-dimensional (2D) dimerized S = 1/2 Heisenberg model. We focus on the scaling correction in the short-time region. A unified scaling form including both short-time and finite-size corrections is proposed. According to this full scaling form, improved short-imaginary-time scaling relations are obtained. We numerically verify the scaling form and the improved short-time scaling relations for different initial states using projector quantum Monte Carlo algorithm.
arXiv comment10 pages, 8 figures
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