Results 11 to 20 of about 150,608 (256)

Lattice quantum Villain Hamiltonians: compact scalars, U(1) gauge theories, fracton models and quantum Ising model dualities

Journal of High Energy Physics, 2023
We construct Villain Hamiltonians for compact scalars and abelian gauge theories. The Villain integers are promoted to integral spectrum operators, whose canonical conjugates are naturally compact scalars.
Lucca Fazza, Tin Sulejmanpasic
doaj   +1 more source

Stochastic normalizing flows as non-equilibrium transformations

Journal of High Energy Physics, 2022
Normalizing flows are a class of deep generative models that provide a promising route to sample lattice field theories more efficiently than conventional Monte Carlo simulations.
Michele Caselle, Elia Cellini, Alessandro Nada, Marco Panero   +3 more
doaj   +1 more source

Entanglement entropy from non-equilibrium Monte Carlo simulations

Journal of High Energy Physics, 2023
We study the entanglement entropy in lattice field theory using a simulation algorithm based on Jarzynski’s theorem. We focus on the entropic c-function for the Ising model in two and in three dimensions: after validating our algorithm against known ...
Andrea Bulgarelli, Marco Panero
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Bond-weighting method for the Grassmann tensor renormalization group

Journal 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
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Alpha-alpha scattering in the Multiverse

Journal of High Energy Physics, 2022
We investigate the phase shifts of low-energy α-α scattering under variations of the fundamental parameters of the Standard Model, namely the light quark mass, the electromagnetic fine-structure constant as well as the QCD θ-angle.
Serdar Elhatisari, Timo A. Lähde, Dean Lee, Ulf-G. Meißner, Thomas Vonk   +4 more
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Bootstrap, Markov Chain Monte Carlo, and LP/SDP hierarchy for the lattice Ising model

Journal of High Energy Physics, 2023
Bootstrap is an idea that imposing consistency conditions on a physical system may lead to rigorous and nontrivial statements about its physical observables. In this work, we discuss the bootstrap problem for the invariant measure of the stochastic Ising
Minjae Cho, Xin Sun
doaj   +1 more source

Canonical quantization of general relativity in discrete space-times [PDF]

, 2002
It has long been recognized that lattice gauge theory formulations, when applied to general relativity, conflict with the invariance of the theory under diffeomorphisms.
A. Ashtekar, J. Ambjorn, J. C. Baez, Jorge Pullin, R. Loll, Rodolfo Gambini, S. Kauffman, T. D. Lee   +7 more
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Scale setting for large-N SUSY Yang-Mills on the lattice

Journal of High Energy Physics, 2022
In this paper we study the large N limit of four-dimensional Supersymmetric Yang-Mills on the lattice using twisted reduced models. We have generated configurations with dynamical massive gluinos and various lattice ’t Hooft couplings, and verified that ...
Pietro Butti, Margarita García Pérez, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa   +4 more
doaj   +1 more source

Lattice 2001: Reflections [PDF]

, 2001
A few subjects which strongly intertwine our field are discussed: K --> Pi Pi decay, chiral symmetry on the lattice and a few other selected topics. Open questions are touched also on perturbation theory, locality, Gribov copies, CP symmetry in chiral ...
Alavi-Harati, Alles, Alles, Alles, Aoki, Aoki, Aoki, Aoki, Aoki, Aoki, Becirevic, Bernard, Bernard, Bietenholz, Billoire, Bowler, Bowler, Bowler, Buchalla, Capitani, Chandrasekharan, Colangelo, de Forcrand, DeGrand, DeGrand, Di Vecchia, Edwards, Fanti, Fujikawa, Furman, Gattringer, Gattringer, Gattringer, Gimenez, Ginsparg, Giusti, Giusti, Giusti, Golterman, Golterman, Hart, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Hasenfratz, Hernandez, Hernandez, Hernandez, Horvath, Horvath, Iwasaki, Kaplan, Khan, Kikukawa, Lang, Lellouch, Lellouch, Lepage, Leutwyler, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Maiani, Martinelli, Melles, Narayanan, Narayanan, Narayanan, Narayanan, Narayanan, Neuberger, Neuberger, Niedermayer, Nielsen, Nielsen, P. Hasenfratz, Peter, Randjbar-Daemi, Schröder, Shamir, Sheikholeslami, Sommer, Suzuki, Suzuki, Symanzik, Symanzik, Teper, Veneziano, Veneziano, Witten   +97 more
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Critical endpoint of (3+1)-dimensional finite density ℤ3 gauge-Higgs model with tensor renormalization group

Journal of High Energy Physics, 2023
The critical endpoint of the (3+1)-dimensional ℤ3 gauge-Higgs model at finite density is determined by the tensor renormalization group method. This work is an extension of the previous one on the ℤ2 model.
Shinichiro Akiyama, Yoshinobu Kuramashi
doaj   +1 more source