3 papers
hep-lat2024
Almost gauge-invariant states and the ground state of Yang-Mills theory
A. Mariani
We consider the problem of the explicit description of the gauge-invariant subspace of pure lattice gauge theories in the Hamiltonian formulation, where the gauge group is either a…
hep-lat2023
Broken Symmetry and Fractionalized Flux Strings in a Staggered U(1) Pure Gauge Theory
A. Banerjee, D. Banerjee, G. Kanwar +3
Inspired by self-adjoint extensions of the electric field operator in the Hamiltonian formalism, we extend the Wilsonian framework of Abelian lattice gauge theory by introducing a…
quant-ph2023
Self-adjoint Momentum Operator for a Particle Confined in a Multi-Dimensional Cavity
A. Mariani, U. -J. Wiese
Based on the recent construction of a self-adjoint momentum operator for a particle confined in a one-dimensional interval, we extend the construction to arbitrarily shaped regions…