Results 51 to 60 of about 261,846 (326)

Two-particle scattering from finite-volume quantization conditions using the plane wave basis

Journal of High Energy Physics, 2021
We propose an alternative approach to Lüscher’s formula for extracting two-body scattering phase shifts from finite volume spectra with no reliance on the partial wave expansion. We use an effective-field-theory-based Hamiltonian method in the plane wave
Lu Meng, E. Epelbaum
doaj   +1 more source

General Algorithm For Improved Lattice Actions on Parallel Computing Architectures [PDF]

, 2000
Quantum field theories underlie all of our understanding of the fundamental forces of nature. The are relatively few first principles approaches to the study of quantum field theories [such as quantum chromodynamics (QCD) relevant to the strong ...
Alford, Anthony G. Williams, Bonnet, Bonnet, Bonnet, Brodsky, Brodsky, Cabibbo, Derek B. Leinweber, Fiebig, Fiebig, Forcrand, Frédéric D.R. Bonnet, Glazek, Lee, Lepage, Lepage, Montvay, Muta, Peskin, Roberts, Rothe, Schutte, Wilson   +23 more
core   +3 more sources

QUASI-TOPOLOGICAL QUANTUM FIELD THEORIES AND ℤ₂ LATTICE GAUGE THEORIES [PDF]

International Journal of Modern Physics A, 2012
We consider a two-parameter family of ℤ2 gauge theories on a lattice discretization [Formula: see text] of a three-manifold [Formula: see text] and its relation to topological field theories. Familiar models such as the spin-gauge model are curves on a parameter space Γ.
P. Teotonio-Sobrinho, Miguel Jorge Bernabé Ferreira, Victor A. Pereira   +2 more
openaire   +3 more sources

Circuit-based digital adiabatic quantum simulation and pseudoquantum simulation as new approaches to lattice gauge theory

Journal of High Energy Physics, 2020
Gauge theory is the framework of the Standard Model of particle physics and is also important in condensed matter physics. As its major non-perturbative approach, lattice gauge theory is traditionally implemented using Monte Carlo simulation ...
Xiaopeng Cui, Yu Shi, Ji-Chong Yang
doaj   +1 more source

Quantum Tetrahedra

, 2009
We discuss in details the role of Wigner 6j symbol as the basic building block unifying such different fields as state sum models for quantum geometry, topological quantum field theory, statistical lattice models and quantum computing.
Carfora, Mauro, Marzuoli, Annalisa, Rasetti, Mario   +2 more
core   +1 more source

D-Theory: Field Theory via Dimensional Reduction of Discrete Variables [PDF]

, 1997
A new non-perturbative approach to quantum field theory --- D-theory --- is proposed, in which continuous classical fields are replaced by discrete quantized variables which undergo dimensional reduction.
A. Tsapalis, B.B. Beard, Banks, Barnes, Beard, Ben-Av, Brower, Brower, Brower, Caracciolo, Caracciolo, Chakravarty, Chandrasekharan, Coleman, Coniglio, Creutz, D. Chen, Evertz, Fortuin, Furman, Greven, Greven, Guth, Göpfert, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Horn, Jansen, Kaplan, Kim, Kim, Mermin, Nakajima, Orland, Polyakov, R.C. Brower, S. Chandrasekharan, Shamir, Swendsen, Tamayo, U.-J. Wiese, Wiese, Wolff, Wolff   +45 more
core   +3 more sources

Quantum Logic and the Histories Approach to Quantum Theory

, 1993
An extended analysis is made of the Gell-Mann and Hartle axioms for a generalised `histories' approach to quantum theory. Emphasis is placed on finding equivalents of the lattice structure that is employed in standard quantum logic.
Belavkin V. P., C. J. Isham, Gleason A. M.   +2 more
core   +1 more source

Lattice Wess-Zumino-Witten Model and Quantum Groups [PDF]

, 1992
Quantum groups play a role of symmetries of integrable theories in two dimensions. They may be detected on the classical level as Poisson-Lie symmetries of the corresponding phase spaces.
Alekseev, Alekseev, Alekseev, Alvarez-Gaumé, Babelon, Babelon, Babelon, Babelon, Bernard, Blok, Bonora, Chu, Drinfeld, Drinfeld, Elitzur, Faddeev, Faddeev, Faddeev, Felder, Fernando Falceto, Freidel, Fröhlich, Furlan, Ganchev, Gawȩdzki, Gawȩdzki, Guillemin, Hadjivanov, Jimbo, Kirillov, Kirillov, Krzysztof Gawȩdzki, Lu, Lu, Moore, Reshetikhin, Saleur, Semenov-Tian-Shansky, Sugawara, Tsuchiya, Turaev, Verdier, Volkov, Wakimoto, Witten, Woronowicz   +45 more
core   +2 more sources

Parton distribution functions from Ioffe time pseudo-distributions

Journal of High Energy Physics, 2019
In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution func- tions. We perform a systematic analysis using three lattice ensembles at two volumes, with
Bálint Joó, Joseph Karpie, Kostas Orginos, Anatoly Radyushkin, David Richards, Savvas Zafeiropoulos   +5 more
doaj   +1 more source

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

Advanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani, Surabhi Nadigotti, Erfan Fatehi, Derek Aranguren van Egmond, Behnam Ashrafi   +4 more
wiley   +1 more source