Results 21 to 30 of about 397,717 (356)
Field Theory of Quantum Antiferromagnets : From the Triangular to the Kagome Lattice [PDF]
International Journal of Modern Physics B, 1996 We analyse a family of models, that interpolates between the Triangular lattice antiferromagnet (TLAF) and the Kagome lattice antiferromagnet (KLAF). We identify the field theories governing the low energy, long wavelength physics of these models. Near the TLAF the low energy field theory is a nonlinear sigma model of a SO(3) group valued field.
D. Shubashree, Ravi Shankar
openalex +4 more sources
Lattice Quantum Field Theories with Quantum Symmetry
, 1998 Quantenfeldtheorien in niederen Raum-Zeit-Dimensionen (kleiner als 4) zeigen das Phänomen der Quantensymmetrie, d.h. die globale (Eich-)Symmetrie läßt sich nicht mehr durch eine Gruppe beschreiben, sondern man benötigt allgemeinere allgebraische Objekte wie zum Beispiel Quantengruppen. In dieser Arbeit werden 1+1 dimensionale Gitterquantenfeldtheorien -
Frank Haußer
openalex +3 more sources
Diffusion models as stochastic quantization in lattice field theory [PDF]
Journal of High Energy Physics, 2023 In this work, we establish a direct connection between generative diffusion models (DMs) and stochastic quantization (SQ). The DM is realized by approximating the reversal of a stochastic process dictated by the Langevin equation, generating samples from
L. Wang, Gert Aarts, Kai Zhou
semanticscholar +1 more source
Lattice Integrable Models of Quantum Field Theory [PDF]
, 1993 V. E. Korepin +2 more
openalex +3 more sources
Krylov complexity in quantum field theory, and beyond [PDF]
Journal of High Energy Physics, 2022 We study Krylov complexity in various models of quantum field theory: free massive bosons and fermions on flat space and on spheres, holographic models, and lattice models with a UV-cutoff.
Alexander Avdoshkin +2 more
semanticscholar +1 more source
Entanglement Hamiltonians: From Field Theory to Lattice Models and Experiments [PDF]
Annals of Physics, 2022 Results about entanglement (or modular) Hamiltonians of quantum many‐body systems in field theory and statistical mechanics models, and recent applications in the context of quantum information and quantum simulation, are reviewed.
M. Dalmonte +3 more
semanticscholar +1 more source
Implementing the three-particle quantization condition for π + π + K + and related systems
Journal of High Energy Physics, 2022 Recently, the formalism needed to relate the finite-volume spectrum of systems of nondegenerate spinless particles has been derived. In this work we discuss a range of issues that arise when implementing this formalism in practice, provide further ...
Tyler D. Blanton +2 more
doaj +1 more source
Accelerating Lattice Quantum Field Theory Calculations via Interpolator Optimization Using Noisy Intermediate-Scale Quantum Computing. [PDF]
Physical Review Letters, 2019 The only known way to study quantum field theories in nonperturbative regimes is using numerical calculations regulated on discrete space-time lattices.
A. Avkhadiev, P. Shanahan, R. Young
semanticscholar +1 more source
More on the flavor dependence of m ϱ /f π
Journal of High Energy Physics, 2021 In previous work, [ arXiv:1905.01909 ], we have calculated the m ϱ /fπ ratio in the chiral and continuum limit for SU(3) gauge theory coupled to N f = 2, 3, 4, 5, 6 fermions in the fundamental representation.
Andrey Yu. Kotov +3 more
doaj +1 more source
Hyperbolic Lattice for Scalar Field Theory in AdS$_3$ [PDF]
, 2022 : We construct a tessellation of AdS 3 , by extending the equilateral triangulation of AdS 2 on the Poincar´e disk based on the (2 , 3 , 7) triangle group, suitable for studying strongly coupled phenomena and the AdS/CFT correspondence.
R. Brower, Cameron V. Cogburn, E. Owen
semanticscholar +1 more source