Results 51 to 60 of about 271,677 (330)

On the three-particle analog of the Lellouch-Lüscher formula

open access: yesJournal of High Energy Physics, 2021
Using non-relativistic effective field theory, we derive a three-particle analog of the Lellouch-Lüscher formula at the leading order. This formula relates the three-particle decay amplitudes in a finite volume with their infinite-volume counterparts and,
Fabian Müller, Akaki Rusetsky
doaj   +1 more source

Thermal QCD in a non-uniform magnetic background

open access: yesJournal of High Energy Physics, 2023
Off-central heavy-ion collisions are known to feature magnetic fields with magnitudes and characteristic gradients corresponding to the scale of the strong interactions.
B. B. Brandt   +5 more
doaj   +1 more source

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

open access: yes, 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   +45 more
core   +2 more sources

Deconfined quantum criticality in the two dimensional Kondo lattice model [PDF]

open access: yes, 2005
We investigate the continuous quantum phase transition from an antiferromagnetic metal to a heavy fermion liquid based on the Kondo lattice model in two dimensions.
A. Auerbach   +6 more
core   +1 more source

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

open access: yesInternational 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.
Ferreira, Miguel J. B.   +2 more
openaire   +2 more sources

Consistency between Lüscher’s finite volume method and HAL QCD method for two-baryon systems in lattice QCD

open access: yesJournal of High Energy Physics, 2019
There exist two methods to study two-baryon systems in lattice QCD: the direct method which extracts eigenenergies from the plateaux of the temporal correlation function and the HAL QCD method which extracts observables from the non-local potential ...
The HAL QCD collaboration   +9 more
doaj   +1 more source

N $$ \mathcal{N} $$ = 1 Super-Yang-Mills theory on the lattice with twisted mass fermions

open access: yesJournal of High Energy Physics, 2021
Super-Yang-Mills theory (SYM) is a central building block for supersymmetric extensions of the Standard Model of particle physics. Whereas the weakly coupled subsector of the latter can be treated within a perturbative setting, the strongly coupled ...
Marc Steinhauser   +3 more
doaj   +1 more source

Renormalization group theory of nematic ordering in d-wave superconductors [PDF]

open access: yes, 2008
We examine the quantum theory of the spontaneous breaking of lattice rotation symmetry in d-wave superconductors on the square lattice. This is described by a field theory of an Ising nematic order parameter coupled to the gapless fermionic ...
E. Brézin, Subir Sachdev, Yejin Huh
core   +2 more sources

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

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

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