期刊
PHYSICAL REVIEW B
卷 94, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.94.024201
关键词
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资金
- CONICET (Argentina) [PIP 112-201301-00049]
- FONCyT (Argentina) [PICT-2013-0214]
- Universidad Nacional de San Luis (Argentina) [PROIPRO 3-10214]
We study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse magnetic field with two different short-range bond distributions, the bimodal and the Gaussian ones. Through an exhaustive finite-size analysis, we show that the cumulant probably follows an unconventional activated scaling, which we interpret as new evidence supporting the hypothesis that the quantum critical behavior is governed by an infinite randomness fixed point.
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