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63 papers · 1 filter
A note on the non-commutative Chern-Simons model on manifolds with boundary
Adrián R. Lugo
We study field theories defined in regions of the spatial non-commutative (NC) plane with a boundary present delimiting them, concentrating in particular on the U(1) NC Chern-Simon…
Non local Thirring model with backward and umklapp interactions
V. I. Fernández, C. A. Iucci, C. M. Naón
We extend a non local and non covariant version of the Thirring model in order to describe a many-body system with backward and umklapp scattering processes. We express the vacuum…
Pole structure of the Hamiltonian -function for a singular potential
H. Falomir, P. A. G. Pisani, A. Wipf
We study the pole structure of the -function associated to the Hamiltonian of a quantum mechanical particle living in the half-line , subject to the singular p…
Spatially resolved STIS spectra of WR+OB binaries with colliding winds
Sebastien Lepine, Debra Wallace, Michael M. Shara +2
We present spatially resolved spectra of the visual WR+OB massive binaries WR86, WR146, and WR147, obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space…
Boundary dynamics and multiple reflection expansion for Robin boundary conditions
M. Bordag, H. Falomir, E. M. Santangelo +1
In the presence of a boundary interaction, Neumann boundary conditions should be modified to contain a function S of the boundary fields: (\nabla_N +S)ϕ=0. Information on quantum b…
Noncommutative fermions and Morita equivalence
D. H. Correa, E. F. Moreno
We study the Morita equivalence for fermion theories on noncommutative two-tori. For rational values of the parameter (in appropriate units) we show the equivalence between an…