Journal ArticleDOI
Random-Field Instability of the Ordered State of Continuous Symmetry
Yoseph Imry,Shang-keng Ma +1 more
TLDR
In this article, it was shown that when the order parameter has a continuous symmetry, the ordered state is unstable against an arbitrarily weak random field in less than four dimensions and the borderline dimensionality above which mean-field-theory results hold is six.Abstract:
Phase transitions are considered in systems where the field conjugate to the order parameter is static and random. It is demonstrated that when the order parameter has a continuous symmetry, the ordered state is unstable against an arbitrarily weak random field in less than four dimensions. The borderline dimensionality above which mean-field-theory results hold is six. (auth)read more
Citations
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Journal ArticleDOI
The melting of stable glasses is governed by nucleation-and-growth dynamics
Robert L. Jack,Ludovic Berthier +1 more
TL;DR: The results suggest that nucleation-and-growth dynamics, as found near ordinary first-order transitions, is also the correct theoretical framework to analyse the melting of ultrastable glasses, and provides a unified understanding of multiple experimental observations.
Journal ArticleDOI
Disordered driven coupled cavity arrays: Nonequilibrium stochastic mean-field theory
TL;DR: In this article, the authors studied the interplay of disorder with pumping and decay in coupled qubit-cavity arrays, the Jaynes-Cummings-Hubbard model, and found that relatively weak disorder can wash out the bistability present in the clean pumped system and moreover the combination of disorder in on-site energies and decay can lead to effective phase disorder.
Journal ArticleDOI
On the analogues of Szegő's theorem for ergodic operators
W Kirsch,L A Pastur +1 more
TL;DR: In this article, Szegő's theorem on the asymptotic behaviour of the determinants of large Toeplitz matrices is generalized to the class of ergodic operators.
Journal ArticleDOI
Adaptive multi-GPU Exchange Monte Carlo for the 3D Random Field Ising Model
TL;DR: The work proposes an adaptive multi-GPU approach that dynamically builds a proper temperature set free of exchange bottlenecks, based on mid-point insertions at the temperature gaps where the exchange rate is most compromised.
Journal ArticleDOI
Magnetic and magnetostrictive properties in amorphous (Tb0.27Dy0.73)(Fe1−xCox)2 films
TL;DR: In this paper, an increase in the 3D magnetic moment due to the enhancement of T-T interactions in substituted (Fe, Co) alloys was found, which leads to stronger exchange energies and then to enhancements of R-sublattice magnetization as well as magnetostriction in these amorphous R(Fe,
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