Characterization and Synthesis of Silver Nanostructures in Rare Earth Activated GeO2-PbO Glass Matrix Using Matrix Adjustment Thermal Reduction Method [PDF]
This paper reports matrix adjustment thermal reduction method to synthesize silver nanostructures in Er3+/Yb3+ activated GeO2-PbO glass matrix. The GeO2-PbO glass, the medium of nanoparticle formation, doped with Er2O3, Yb2O3 and AgNO3 was prepared by a ...
Hj. A. A. Sidek+4 more
doaj +6 more sources
Population annealing: Theory and application in spin glasses [PDF]
Population annealing is an efficient sequential Monte Carlo algorithm for simulating equilibrium states of systems with rough free energy landscapes. The theory of population annealing is presented, and systematic and statistical errors are discussed.
Wenlong Wang+3 more
openaire +8 more sources
Theory of Quantum Annealing of an Ising Spin Glass [PDF]
Probing the lowest energy configuration of a complex system by quantum annealing was recently found to be more effective than its classical, thermal counterpart. By comparing classical and quantum Monte Carlo annealing protocols on the two-dimensional random Ising model (a prototype spin glass), we confirm the superiority of quantum annealing relative ...
Roman Martonak+4 more
openaire +6 more sources
Possible ergodic-nonergodic regions in the quantum Sherrington-Kirkpatrick spin glass model and quantum annealing [PDF]
We explore the behavior of order parameter distribution of quantum Sherrington-Kirkpatrick model in the spin glass phase using Monte Carlo technique for the effective Suzuki-Trotter Hamil- tonian at finite temperatures and that at zero temperature ...
Sudip Mukherjee+2 more
openalex +3 more sources
Dual time scales in simulated annealing of a two-dimensional Ising spin glass [PDF]
We apply a generalized Kibble-Zurek out-of-equilibrium scaling ansatz to simulated annealing when approaching the spin-glass transition at temperature $T=0$ of the two-dimensional Ising model with random $J= \pm 1$ couplings.
Shanon J. Rubin+2 more
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The influence of the annealing mode on stress elimination in a foam glass structure [PDF]
The purpose of this work was to establish the influence of features of the annealing mode on the value of residual stresses in the structure of porous inorganic materials using foam glass as an example.
Grushko Irina
doaj +1 more source
Structural relaxation and nanomechanical behaviors of La65Al14Ni5Co5Cu9.2Ag1.8 bulk metallic glass (BMG) with a low glass transition temperature during annealing have been investigated by calorimetry and nanoindentation measurement.
Ting Shi, Lanping Huang, Song Li
doaj +1 more source
Cyclic quantum annealing: searching for deep low-energy states in 5000-qubit spin glass. [PDF]
Zhang H, Boothby K, Kamenev A.
europepmc +4 more sources
Constrained Annealing for Spin Glasses [PDF]
The quenched free energy of spin glasses is estimated by means of annealed averages where the frustration is constrained to its average value. We discuss the case of d-dimensional Ising models with random nearest neighbour coupling, and we introduce a new method to obtain constrained annealed averages without recurring to Lagrange multipliers.
Paladin G, Pasquini M, SERVA, Maurizio
openaire +5 more sources
Partial annealing of a coupled mean-field spin-glass model with an embedded pattern [PDF]
A partially annealed mean-field spin-glass model with a locally embedded pattern is studied. The model consists of two dynamical variables, spins and interactions, that are in contact with thermal baths at temperatures T_S and T_J, respectively.
Ayaka Sakata+4 more
core +4 more sources