Results 21 to 30 of about 1,477,861 (328)
Bayesian model averaging for analysis of lattice field theory results [PDF]
Physical Review D, 2020 Statistical modeling is a key component in the extraction of physical results from lattice field theory calculations. Although the general models used are often strongly motivated by physics, their precise form is typically ill-determined, and many model
W. Jay, E. Neil
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
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Tensor lattice field theory for renormalization and quantum computing [PDF]
Reviews of Modern Physics, 2020 We discuss the successes and limitations of statistical sampling for a sequence of models studied in the context of lattice QCD and emphasize the need for new methods to deal with finite-density and real-time evolution.
Y. Meurice, Ryo Sakai, J. Unmuth-Yockey
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Quantum algorithms for open lattice field theory [PDF]
Physical Review A, 2020 Certain aspects of some unitary quantum systems are well-described by evolution via a non-Hermitian effective Hamiltonian, as in the Wigner-Weisskopf theory for spontaneous decay. Conversely, any non-Hermitian Hamiltonian evolution can be accommodated in
J. Hubisz +2 more
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Critical Lattice Model for a Haagerup Conformal Field Theory. [PDF]
Physical Review Letters, 2021 We use the formalism of strange correlators to construct a critical classical lattice model in two dimensions with the Haagerup fusion category H_{3} as input data.
R. Vanhove +6 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
Flow-based generative models for Markov chain Monte Carlo in lattice field theory [PDF]
Physical Review D, 2019 A Markov chain update scheme using a machine-learned flow-based generative model is proposed for Monte Carlo sampling in lattice field theories. The generative model may be optimized (trained) to produce samples from a distribution approximating the ...
M. S. Albergo, G. Kanwar, P. Shanahan
semanticscholar +1 more source
Detecting and Mitigating Mode-Collapse for Flow-based Sampling of Lattice Field Theories [PDF]
Physical Review D, 2023 We study the consequences of mode-collapse of normalizing flows in the context of lattice field theory. Normalizing flows allow for independent sampling.
K. Nicoli +5 more
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
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Nucleon momentum fraction, helicity and transversity from 2+1-flavor lattice QCD
Journal of High Energy Physics, 2021 A detailed analysis of the systematic uncertainties in the calculation of the isovector momentum fraction, 〈x〉 u − d , helicity moment, 〈x〉Δu − Δd , and the transversity moment, 〈x〉 δu − δd , of the nucleon is presented using high-statistics data on ...
Nucleon Matrix Elements (NME) collaboration +7 more
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