Results 71 to 80 of about 416,793 (324)

Two-particle scattering from finite-volume quantization conditions using the plane wave basis

open access: yesJournal of High Energy Physics, 2021
We propose an alternative approach to Lüscher’s formula for extracting two-body scattering phase shifts from finite volume spectra with no reliance on the partial wave expansion. We use an effective-field-theory-based Hamiltonian method in the plane wave
Lu Meng, E. Epelbaum
doaj   +1 more source

Improving the Lattice QCD Hamiltonian

open access: yes, 1997
Improvement of the Hamiltonian in lattice gauge theory is considered. We give explicit expressions for classical improvement and discuss also quantum corrections.Comment: 3 pages, Latex.
Chen   +9 more
core   +2 more sources

Hubbard model on the honeycomb lattice: From static and dynamical mean-field theories to lattice quantum Monte Carlo simulations [PDF]

open access: yesPhysical review B, 2019
We study the one-band Hubbard model on the honeycomb lattice using a combination of quantum Monte Carlo (QMC) simulations and static as well as dynamical mean-field theory (DMFT).
M. Raczkowski   +6 more
semanticscholar   +1 more source

A PDE Construction of the Euclidean $$\Phi ^4_3$$ Quantum Field Theory [PDF]

open access: yesCommunications in Mathematical Physics, 2018
We present a new construction of the Euclidean $$\Phi ^4$$ Φ 4 quantum field theory on $${\mathbb {R}}^3$$ R 3 based on PDE arguments. More precisely, we consider an approximation of the stochastic quantization equation on $${\mathbb {R}
Massimiliano Gubinelli, M. Hofmanová
semanticscholar   +1 more source

Exotic symmetries, duality, and fractons in 2+1-dimensional quantum field theory

open access: yes, 2020
We discuss nonstandard continuum quantum field theories in 2+1 dimensions. They exhibit exotic global symmetries, a subtle spectrum of charged excitations, and dualities similar to dualities of systems in 1+1 dimensions.
N. Seiberg, Shu-Heng Shao
semanticscholar   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Strange metals and the AdS/CFT correspondence [PDF]

open access: yes, 2010
I begin with a review of quantum impurity models in condensed matter physics, in which a localized spin degree of freedom is coupled to an interacting conformal field theory in d = 2 spatial dimensions.
Affleck I   +20 more
core   +2 more sources

A New Computational Approach to Lattice Quantum Field Theories [PDF]

open access: yesProceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009
15 pages, 6 figures; Plenary talk presented at the XXVI International Symposium on Lattice Field Theory, July 14 - 19, 2008, Williamsburg, Virginia ...
openaire   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Monte Carlo Hamiltonian of lattice gauge theory

open access: yes, 2005
We discuss how the concept of the Monte Carlo Hamiltonian can be applied to lattice gauge theories.Comment: "Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, China ...
Creutz M.   +4 more
core   +1 more source

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