Results 41 to 50 of about 13,358,443 (259)

Quantum simulation of quantum field theories as quantum chemistry

open access: yesJournal of High Energy Physics, 2020
Conformal truncation is a powerful numerical method for solving generic strongly-coupled quantum field theories based on purely field-theoretic technics without introducing lattice regularization.
Junyu Liu, Yuan Xin
doaj   +1 more source

Induced QCD II: numerical results

open access: yesJournal of High Energy Physics, 2019
We numerically explore an alternative discretization of continuum SU(N c ) Yang-Mills theory on a Euclidean spacetime lattice, originally introduced by Budzcies and Zirnbauer for gauge group U(N c ).
Bastian B. Brandt   +2 more
doaj   +1 more source

A single-particle framework for unitary lattice gauge theory in discrete time

open access: yesNew Journal of Physics, 2022
We construct a real-time lattice-gauge-theory (LGT)-type action for a spin-1/2 matter field of a single particle on a $(1+1)$ -dimensional spacetime lattice.
Pablo Arnault, Christopher Cedzich
doaj   +1 more source

Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to neural networks

open access: yesJournal of High Energy Physics, 2019
The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem in high energy nuclear physics.
Joseph Karpie   +3 more
doaj   +1 more source

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

open access: yesJournal 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

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

open access: yesJournal 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

Idealization in Quantum Field Theory [PDF]

open access: yes, 1998
This paper explores various functions of idealizations in quantum field theory. To this end it is important to first distinguish between different kinds of theories and models of or inspired by quantum field theory.
Hartmann, Stephan
core   +2 more sources

Recent Mathematical Developments in Quantum Field Theory [PDF]

open access: yes, 2016
This workshop has focused on three areas in mathematical quantum field theory and their interrelations: 1) conformal field theory, 2) constructions of interacting models of quantum field theory by various methods, and 3) several approaches studying the ...
Kopper, Christoph   +8 more
core   +1 more source

Nonequilibrium Quantum Field Theory [PDF]

open access: yes, 2009
Bringing together the key ideas from nonequilibrium statistical mechanics and powerful methodology from quantum field theory, this 2008 book captures the essence of nonequilibrium quantum field theory.
Calzetta, Esteban A., Hu, Bei-Lok B.
core   +1 more source

Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe   +9 more
wiley   +1 more source

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