Results 1 to 10 of about 24,836 (155)

String-net formulation of Hamiltonian lattice Yang-Mills theories and quantum many-body scars in a nonabelian gauge theory

open access: yesJournal of High Energy Physics, 2023
We study the Hamiltonian lattice Yang-Mills theory based on spin networks that provide a useful basis to represent the physical states satisfying the Gauss law constraints. We focus on SU(2) Yang-Mills theory in (2 + 1) dimensions.
Tomoya Hayata, Yoshimasa Hidaka
doaj   +1 more source

Tensor renormalization group study of (3+1)-dimensional ℤ2 gauge-Higgs model at finite density

open access: yesJournal of High Energy Physics, 2022
We investigate the critical endpoints of the (3+1)-dimensional ℤ2 gauge-Higgs model at finite density together with the (2+1)-dimensional one at zero density as a benchmark using the tensor renormalization group method.
Shinichiro Akiyama, Yoshinobu Kuramashi
doaj   +1 more source

Bond-weighting method for the Grassmann tensor renormalization group

open access: yesJournal of High Energy Physics, 2022
Recently, the tensor network description with bond weights on its edges has been proposed as a novel improvement for the tensor renormalization group algorithm. The bond weight is controlled by a single hyperparameter, whose optimal value is estimated in
Shinichiro Akiyama
doaj   +1 more source

Three-body resonances in the φ 4 theory

open access: yesJournal of High Energy Physics, 2023
We study the properties of three-body resonances using a lattice complex scalar φ 4 theory with two scalars, with parameters chosen such that one heavy particle can decay into three light ones.
Marco Garofalo   +4 more
doaj   +1 more source

A new picture of quantum tunneling in the real-time path integral from Lefschetz thimble calculations

open access: yesJournal of High Energy Physics, 2023
It is well known that quantum tunneling can be described by instantons in the imaginary-time path integral formalism. However, its description in the real-time path integral formalism has been elusive. Here we establish a statement that quantum tunneling
Jun Nishimura   +2 more
doaj   +1 more source

Analytic expansions of multi-hadron finite-volume energies. I. Two-particle states

open access: yesJournal of High Energy Physics, 2022
We derive analytic expansions for the finite-volume energies of weakly-interacting two-particle systems, using the general relations between scattering amplitudes and energies derived by Lüscher and others.
D. M. Grabowska, M. T. Hansen
doaj   +1 more source

Bounding the QCD Equation of State with the Lattice

open access: yesJournal of High Energy Physics, 2023
The equation of state of QCD matter at high densities is relevant for neutron star structure and for neutron star mergers and has been a focus of recent work.
Guy D. Moore, Tyler Gorda
doaj   +1 more source

Three relativistic neutrons in a finite volume

open access: yesJournal of High Energy Physics, 2023
We generalize the relativistic field-theoretic (RFT) three-particle finite-volume formalism to systems of three identical, massive, spin-1/2 fermions, such as three neutrons.
Zachary T. Draper   +3 more
doaj   +1 more source

A computerized intervention to promote colorectal cancer screening for underserved populations: Theoretical background and algorithm development [PDF]

open access: yesTechnology and Health Care, 2012
Objective: The aim of this exploratory study was to assess factors deemed by patients as “important” as they planned and considered undergoing colorectal cancer (CRC) screening, and to use this data to design a computer-delivered intervention to promote screening.
Greiner, K. Allen   +8 more
openaire   +4 more sources

Bootstrapping the gap in quantum spin systems

open access: yesJournal of High Energy Physics, 2023
In this work we report on a new bootstrap method for quantum mechanical problems that closely mirrors the setup from conformal field theory (CFT). We use the equations of motion to develop an analogue of the conformal block expansion for matrix elements ...
Colin Oscar Nancarrow, Yuan Xin
doaj   +1 more source

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