Results 51 to 60 of about 146,967 (225)

Real-time spin systems from lattice field theory

Journal of High Energy Physics, 2023
We construct a lattice field theory method for computing the real-time dynamics of spin systems in a thermal bath. This is done by building on previous work of Takano with Schwinger-Keldysh and functional differentiation techniques. We derive a Schwinger-
Neill C. Warrington
doaj   +1 more source

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

Journal 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, Takumi Iritani, Sinya Aoki, Takumi Doi, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Noriyoshi Ishii, Hidekatsu Nemura, Kenji Sasaki   +9 more
doaj   +1 more source

Towards Novel Insights in Lattice Field Theory with Explainable Machine Learning [PDF]

Physical Review D, 2020
Machine learning has the potential to aid our understanding of phase structures in lattice quantum field theories through the statistical analysis of Monte Carlo samples. Available algorithms, in particular those based on deep learning, often demonstrate
Stefan Blücher, Lukas Kades, J. Pawlowski, N. Strodthoff, Julian M. Urban   +4 more
semanticscholar   +1 more source

Relativistic-invariant formulation of the NREFT three-particle quantization condition

Journal of High Energy Physics, 2022
A three-particle quantization condition on the lattice is written down in a manifestly relativistic-invariant form by using a generalization of the non-relativistic effective field theory (NREFT) approach.
Fabian Müller, Jin-Yi Pang, Akaki Rusetsky, Jia-Jun Wu   +3 more
doaj   +1 more source

Radial lattice quantization of 3D ϕ4 field theory [PDF]

Physical Review D, 2020
The quantum extension of classical finite elements, referred to as quantum finite elements ({\bf QFE})~\cite{Brower:2018szu,Brower:2016vsl}, is applied to the radial quantization of 3d $\phi^4$ theory on a simplicial lattice for the $\mathbb R \times ...
R. Brower, G. Fleming, A. Gasbarro, Dean Howarth, T. Raben, C. Tan, E. Weinberg   +6 more
semanticscholar   +1 more source

Simulating thimble regularization of lattice quantum field theories [PDF]

Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), 2017
Monte Carlo simulations of lattice quantum field theories on Lefschetz thimbles are non trivial. We discuss a new Monte Carlo algorithm based on the idea of computing contributions to the functional integral which come from complete flow lines. The latter are the steepest ascent paths attached to critical points, i.e.
F. Di Renzo, G. Eruzzi
openaire   +3 more sources

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

Journal 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

Tensor polarizability of the vector mesons from SU(3) lattice gauge theory

Journal of High Energy Physics, 2018
The magnetic dipole polarizabilities of the vector ρ 0 and ρ ± mesons in SU(3) pure gauge theory are calculated in the article. Based on this the authors explore the contribution of the dipole magnetic polarizabilities to the tensor polarization of the ...
E. V. Luschevskaya, O. V. Teryaev, D. Yu. Golubkov, O. V. Solovjeva, R. A. Ishkuvatov   +4 more
doaj   +1 more source

Thermal QCD in a non-uniform magnetic background

Journal 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, F. Cuteri, G. Endrődi, G. Markó, L. Sandbote, A. D. M. Valois   +5 more
doaj   +1 more source

Digital Quantum Simulation of a (1+1)D SU(2) Lattice Gauge Theory with Ion Qudits [PDF]

PRX Quantum
We present a quantum simulation strategy for a (1+1)-dimensional SU(2) non-Abelian lattice gauge theory with dynamical matter, a hardcore-gluon Hamiltonian Yang-Mills, tailored to a six-level trapped-ion-qudit quantum processor, as recently ...
G. Calajó, G. Magnifico, C. Edmunds, M. Ringbauer, Simone Montangero, P. Silvi   +5 more
semanticscholar   +1 more source