Results 161 to 170 of about 873,854 (287)

A review of multiscale numerical modeling of rock mechanics and rock engineering

open access: yesDeep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

Integrals over SU(N) [PDF]

open access: yesarXiv, 2008
In this paper we calculate a number of integrals over SU(N) of interest in Hamiltonian Lattice Gauge Theory calculations.
arxiv  

Perturbative Stability and Error-Correction Thresholds of Quantum Codes

open access: yesPRX Quantum
Topologically ordered phases are stable to local perturbations, and topological quantum error-correcting codes enjoy thresholds to local errors. We connect the two notions of stability by constructing classical statistical mechanics models for decoding ...
Yaodong Li   +2 more
doaj   +1 more source

Unveiling Temperature‐Dependent Behavior of AlN Piezoelectric Single Crystal: Insights at the Atomic Scale

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates the temperature‐dependent behavior of AlN piezoelectric crystal. Computational analysis reveals that the defect‐free AlN single crystal structure exhibited a stable piezoelectric coefficient d33 at 1300 K. Enhancing the stability of piezoelectric properties is essential for ensuring the reliability of high‐temperature ...
Yajing Fan   +11 more
wiley   +1 more source

Abundant Neighborhoods, Two‐Sided Markets, and Maximal Matchings

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT I introduce a new graph‐theoretic property called abundant neighborhoods. This property is motivated by studying the thickness of economic markets. A vertex is, roughly, guaranteed to match if and only if it has an abundant neighborhood.
Muhammad Maaz
wiley   +1 more source

PT Symmetry and QCD: Finite Temperature and Density

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
The relevance of PT symmetry to quantum chromodynamics (QCD), the gauge theory of the strong interactions, is explored in the context of finite temperature and density.
Michael C. Ogilvie, Peter N. Meisinger
doaj   +1 more source

Structural and Optical Characterization of Pure and Lanthanum Substituted Nd1–xLaxAlO3 Prepared by Sol–Gel Method

open access: yesChemistryOpen, EarlyView.
The variations in crystal‐field splitting parameter Δ for the pure and elongated polyhedra. The present studies offer the new methodology to tune crystal‐field energy by means of lattice distortion. The present results are useful for fine tuning of laser energy.
Akash S. Padole   +8 more
wiley   +1 more source

Prepotential Formulation of Lattice Gauge Theory [PDF]

open access: yesarXiv, 2014
Within the Hamiltonian formulation of Lattice gauge theories, prepotentials, belonging to the fundamental representation of the gauge group and defined locally at each site of the lattice, enables us to construct local loop operators and loop states. We propose a set of diagrammatic rules for the action of local gauge invariant operators on arbitrary ...
arxiv  

Corrections of Electron–Phonon Coupling for Second‐Order Structural Phase Transitions

open access: yesphysica status solidi (b), EarlyView.
The left image illustrates a weak electron–phonon coupling, while the right image depicts a strong electron–phonon coupling. The weak electron–phonon coupling interaction between the lattice and electrons is susceptible to destabilization by an increase in temperature.
Mario Graml, Kurt Hingerl
wiley   +1 more source

Investigating a (3+1)D topological θ -term in the Hamiltonian formulation of lattice gauge theories for quantum and classical … [PDF]

open access: hybrid, 2021
Angus Kan   +7 more
openalex   +1 more source

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