Quantum mechanical and information theoretic view on classical glass transitions
Quantum mechanical and information theoretic view on classical glass transitions
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经典玻璃化转变的量子力学和信息论观点
DOI:
10.1103/physrevb.81.184303
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发表时间:
2010
影响因子:
3.7
通讯作者:
Castelnovo C
中科院分区:
文献类型:
--
作者:
Castelnovo C
Using the mapping of the Fokker-Planck description of classical stochastic dynamics onto a quantum Hamiltonian, we argue that a dynamical glass transition in the former must have a precise definition in terms of a quantum phase transition in the latter. At the dynamical level, the transition corresponds to a collapse of the excitation spectrum at a critical point. At the static level, the transition affects the ground-state wave function: while in some cases it could be picked up by the expectation value of a local operator, in others the order may be nonlocal and impossible to be determined with any local probe. Here we instead propose to use concepts from quantum information theory that are not centered around local order parameters, such as fidelity and entanglement measures. We show that for systems derived from the mapping of classical stochastic dynamics, singularities in the fidelity susceptibility translate directly into singularities in the heat capacity of the classical system. In classical glassy systems with an extensive number of metastable states, we find that the prefactor of the area law term in the entanglement entropy jumps across the transition. We also discuss how entanglement measures can be used to detect a growing correlation length that diverges at the transition. Finally, we illustrate how static order can be hidden in systems with a macroscopically large number of degenerate equilibrium states by constructing a three-dimensional lattice gauge model with only short-range interactions but with a finite temperature continuous phase transition into a massively degenerate phase.
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DOI:
10.1016/s0550-3213(98)00342-3
发表时间:
1997
期刊:
Nuclear Physics
影响因子:
--
作者:
R. Pietig;F. Wegner
通讯作者:
F. Wegner
影响因子:
--
作者:
H. Tomita;A. Itō;Hideyuki Kidachi
通讯作者:
Hideyuki Kidachi
影响因子:
1.3
作者:
B. Gaveau;L. Schulman
通讯作者:
L. Schulman
DOI:
10.1051/jp1:1996225
发表时间:
1996
期刊:
Journal De Physique I
影响因子:
--
作者:
R. Mélin
通讯作者:
R. Mélin
影响因子:
0.8
作者:
B. U. Felderhof
通讯作者:
B. U. Felderhof