Results 51 to 60 of about 48,835 (257)

Lattice Gauge Theories and String Dynamics in Rydberg Atom Quantum Simulators

open access: yesPhysical Review X, 2020
Gauge theories are the cornerstone of our understanding of fundamental interactions among elementary particles. Their properties are often probed in dynamical experiments, such as those performed at ion colliders and high-intensity laser facilities ...
Federica M. Surace   +5 more
doaj   +1 more source

Matrix product representation of gauge invariant states in a Z_2 lattice gauge theory

open access: yes, 2005
The Gauss law needs to be imposed on quantum states to guarantee gauge invariance when one studies gauge theory in hamiltonian formalism. In this work, we propose an efficient variational method based on the matrix product ansatz for a Z_2 lattice gauge ...
  +6 more
core   +1 more source

Coexisting Rashba/Dresselhaus Spin Splitting in Solution‐Processed Bournonite Films Using Circular Photogalvanic Effect

open access: yesAdvanced Functional Materials, EarlyView.
Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell   +5 more
wiley   +1 more source

From square plaquettes to triamond lattices for SU(2) gauge theory

open access: yesCommunications Physics
Lattice gauge theory should be able to address significant new scientific questions when implemented on quantum computers. In practice, error-mitigation techniques have already allowed encouraging progress on small lattices.
Ali H. Z. Kavaki, Randy Lewis
doaj   +1 more source

Measure of the path integral in lattice gauge theory

open access: yes, 2005
We show how to construct the measure of the path integral in lattice gauge theory. This measure contains a factor beyond the standard Haar measure. Such factor becomes relevant for the calculation of a single transition amplitude (in contrast to the ...
C. Itzykson   +8 more
core   +1 more source

Reaching the continuum limit in lattice gauge theory - without a computer [PDF]

open access: yes, 2001
The scaling slope of the anti-symmetric mass gap M of compact U(1)_{2+1} lattice gauge theory is obtained analytically in the Hamiltonian formalism using the plaquette expansion.
Baker   +21 more
core   +2 more sources

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy   +6 more
wiley   +1 more source

Matching Lagrangian and Hamiltonian simulations in (2+1)-dimensional U(1) gauge theory

open access: yesEuropean Physical Journal C: Particles and Fields
At finite lattice spacing, Lagrangian and Hamiltonian predictions differ due to discretization effects. In the Hamiltonian limit, i.e. at vanishing temporal lattice spacing $$a_t$$ a t , the path integral approach in the Lagrangian formalism reproduces ...
C. F. Groß   +6 more
doaj   +1 more source

A Lattice Gauge Model of Singular Marsden-Weinstein Reduction. Part I. Kinematics [PDF]

open access: yes, 2006
The simplest nontrivial toy model of a classical SU(3) lattice gauge theory is studied in the Hamiltonian approach. By means of singular symplectic reduction, the reduced phase space is constructed. Two equivalent descriptions of this space in terms of a
Fischer, E., Rudolph, G., Schmidt, M.
core   +2 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

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