Lattice calculations on the spectrum of Dirac and Dirac–Kähler operators

RG Campos, JL López-López, R Vera - International Journal of …, 2008 - World Scientific
We use a lattice formulation to study the spectra of the Dirac and the Dirac–Kähler operators
on the 2-sphere. This lattice formulation uses differentiation matrices which yield exact …

Aliasing modes in the lattice Schwinger model

RG Campos, ES Tututi - Physics Letters A, 2007 - Elsevier
We study the Schwinger model on a lattice consisting of zeros of the Hermite polynomials
that incorporates a lattice derivative and a discrete Fourier transform with many properties …

Ultralocality on the lattice

RG Campos, ES Tututi - arxiv preprint hep-lat/0208053, 2002 - arxiv.org
arxiv:hep-lat/0208053v1 26 Aug 2002 Page 1 arxiv:hep-lat/0208053v1 26 Aug 2002 Ultralocality
on the lattice Rafael G. Campos∗ and Eduardo S. Tututi† Escuela de Ciencias …

Universal Lattice Basis

J Jerke, CJ Tymczak - arxiv preprint arxiv:1309.0166, 2013 - arxiv.org
We report on the utility of using Shannons Sampling theorem to solve Quantum Mechanical
systems. We show that by extending the logic of Shannons interpolation theorem we can …

Finite-size effects on a lattice calculation

RG Campos, ES Tututi - Physics Letters A, 2008 - Elsevier
We study in this Letter the finite-size effects of a non-periodic lattice on a lattice calculation.
To this end we use a finite lattice equipped with a central difference derivative with …

The Schwinger model on a nonperiodic lattice

RG Campos, ES Tututi - Particles and Fields: X Mexican …, 2006 - ui.adsabs.harvard.edu
We study the Schwinger model on a lattice constructed from zeros of the Hermite
polynomials that incorporates a lattice derivative and a discrete Fourier transform with many …