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Aging and non-equilibrium critical phenomena in Monte Carlo simulations of 3D pure and diluted Ising models

Pavel V. Prudnikov, Vladimir V. Prudnikov, Evgeny A. Pospelov, Petr N. Malyarenko and Andrey N. Vakilov.

in Progress of Theoretical and Experimental Physics

May 2015; p ublished online May 2015 .

Journal Article. Subjects: Classical Mechanics; Computational Physics. 8524 words.

We investigate the non-equilibrium critical evolution of statistical systems and describe of its some features, such as aging and violation of the fluctuation-dissipation theorem. We...

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Application of a neural network to the sign problem via the path optimization method

Yuto Mori, Kouji Kashiwa and Akira Ohnishi.

in Progress of Theoretical and Experimental Physics

P ublished online February 2018 .

Journal Article. Subjects: Computational Physics; Classical Mechanics; Particles and Fields. 4037 words.

Abstract

We introduce the feedforward neural network to attack the sign problem via the path optimization method. The variables of integration are complexified...

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Averaged Semiquantum Method Is a Useful Tool to Predict the Decoherence of Kicked Harmonic Oscillator System

Zhuo Wang and Quan-lin Jie.

in Progress of Theoretical Physics

February 2010; p ublished online February 2010 .

Journal Article. Subjects: Quantum Physics; Classical Mechanics; Computational Physics. 0 words.

We investigate the quantum-classical correspondence of kicked harmonic oscillator (KHO) model by the averaged semiquantum method. Furthermore, we investigate the decoherence of N dimensiona...

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Molecular Transport through a Bottleneck Driven by External Force

Chihiro Nakajima and Hisao Hayakawa.

in Progress of Theoretical Physics

December 2009; p ublished online December 2009 .

Journal Article. Subjects: Condensed Matter Physics; Physics; Classical Mechanics; Computational Physics. 0 words.

The transport phenomena of Lennard-Jones molecules through a structural bottleneck driven by an external force are investigated by molecular dynamics simulations. We observe two distinct...

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Non-Equilibrium Critical Relaxation of the 3D Heisenberg Magnets with Long-Range Correlated Disorder

Pavel V. Prudnikov and Maria A. Medvedeva.

in Progress of Theoretical Physics

March 2012; p ublished online March 2012 .

Journal Article. Subjects: Classical Mechanics; Computational Physics. 0 words.

Monte Carlo simulations of the short-time dynamic behavior are reported for three-dimensional Heisenberg model with long-range correlated disorder at criticality, in the case corresponding...

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Phase Transition in Potts Model with Invisible States

Ryo Tamura, Shu Tanaka and Naoki Kawashima.

in Progress of Theoretical Physics

August 2010; p ublished online August 2010 .

Journal Article. Subjects: Classical Mechanics; Computational Physics. 0 words.

We study phase transition in the ferromagnetic Potts model with invisible states that are added as redundant states by mean-field calculation and Monte Carlo simulation. Invisible states...

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Scaling Relation for Excitation Energy under Hyperbolic Deformation

Hiroshi Ueda, Hiroki Nakano, Koichi Kusakabe and Tomotoshi Nishino.

in Progress of Theoretical Physics

September 2010; p ublished online September 2010 .

Journal Article. Subjects: Classical Mechanics; Computational Physics. 0 words.

We introduce a one-parameter deformation for one-dimensional quantum lattice models, the hyperbolic deformation, where the scale of the local energy is proportional to cosh λj at the jth...

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Spherical Deformation for One-Dimensional Quantum Systems

Andrej Gendiar, Roman Krcmar and Tomotoshi Nishino.

in Progress of Theoretical Physics

October 2009; p ublished online October 2009 .

Journal Article. Subjects: Condensed Matter Physics; Classical Mechanics; Computational Physics. 0 words.

System-size dependence of the ground-state energy EN is investigated for N-site one-dimensional (1D) quantum systems with open boundary condition, where the interaction...

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