Domain-wall engineering and topological defects in ferroelectric and ferroelastic materials

GF Nataf, M Guennou, JM Gregg, D Meier… - Nature Reviews …, 2020 - nature.com
Ferroelectric and ferroelastic domain walls are 2D topological defects with thicknesses
approaching the unit cell level. When this spatial confinement is combined with observations …

[图书][B] Statistical field theory for neural networks

M Helias, D Dahmen - 2020 - Springer
Many qualitative features of the emerging collective dynamics in neuronal networks, such as
correlated activity, stability, response to inputs, and chaotic and regular behavior, can be …

Computational complexity of spin-glass three-dimensional (3D) Ising model

Z Zhang - Journal of Materials Science & Technology, 2020 - Elsevier
In this work, the computational complexity of a spin-glass three-dimensional (3D) Ising
model (for the lattice size N= lmn, where l, m, n are the numbers of lattice points along three …

Dynamical mean-field theory and aging dynamics

A Altieri, G Biroli, C Cammarota - Journal of Physics A …, 2020 - iopscience.iop.org
Dynamical mean-field theory (DMFT) replaces the many-body dynamical problem with one
for a single degree of freedom in a thermal bath whose features are determined self …

Thermodynamic neural network

T Hylton - Entropy, 2020 - mdpi.com
A thermodynamically motivated neural network model is described that self-organizes to
transport charge associated with internal and external potentials while in contact with a …

Improving performance of logical qubits by parameter tuning and topology compensation

J Raymond, N Ndiaye, G Rayaprolu… - 2020 IEEE International …, 2020 - ieeexplore.ieee.org
Optimization or sampling of arbitrary pairwise Ising models, in a quantum annealing protocol
of constrained interaction topology, can be enabled by a minor-embedding procedure. The …

The spectrum of covariance matrices of randomly connected recurrent neuronal networks

Y Hu, H Sompolinsky - bioRxiv, 2020 - biorxiv.org
A key question in theoretical neuroscience is the relation between the connectivity structure
and the collective dynamics of a network of neurons. Here we study the connectivity …

[PDF][PDF] Statistical mechanics of regularized least squares

A Bereyhi - 2020 - opus4.kobv.de
Various problems in practice are mathematically described by a regression model in which
the linear relation between possibly noisy outputs and their corresponding inputs is to be …

Efficient quantum and simulated annealing of Potts models using a half-hot constraint

S Okada, M Ohzeki, K Tanaka - Journal of the Physical Society of …, 2020 - journals.jps.jp
The Potts model is a generalization of the Ising model with Q> 2 components. In the fully
connected ferromagnetic Potts model, a first-order phase transition is induced by varying …

Spin glass energy minimization through learning and evolution

VG Red'ko - Optical Memory and Neural Networks, 2020 - Springer
The research considers the minimization of spin glass energy via learning and evolution.
The Sherrington-Kirkpatrick spin-glass model is used. A population of autonomous agents is …