32 research outputs found
Comment on "Solitons and excitations in the duality-based matrix model"
It is shown that a method for constructing exact multi-solitonic solutions of
the coupled BPS equations in the duality-based generalization of the hermitean
matrix model, which was put forward in a recent paper, is not correct.Comment: 5 pages, no figures, JHEP-style, submitted to JHE
Example of q-deformed Field Theory
The non-relativistic Chern-Simons theory with the single-valued anyonic field
is proposed as an example of q-deformed field theory. The corresponding
q-deformed algebra interpolating between bosons and fermions,both in position
and momentum spaces, is analyzed.A possible generalization to a space with an
arbitrary dimension is suggested.Comment: 13 pages,LaTe
Multi-vortex solution in the Sutherland model
We consider the large- Sutherland model in the Hamiltonian
collective-field approach based on the expansion. The Bogomol'nyi limit
appears and the corresponding solutions are given by static-soliton
configurations. They exist only for \l<1, i.e. for the negative coupling
constant of the Sutherland interaction. We determine their creation energies
and show that they are unaffected by higher-order corrections. For \l=1, the
Sutherland model reduces to the free one-plaquette Kogut-Susskind model.Comment: Latex, using ioplppt.sty, 11 page
Solitons in the Calogero model for distinguishable particles
We consider a large two-family Calogero model in the Hamiltonian,
collective-field approach. The Bogomol'nyi limit appears and the corresponding
solutions are given by the static-soliton configurations. Solitons from
different families are localized at the same place. They behave like a paired
hole and lump on the top of the uniform vacuum condensates, depending on the
values of the coupling strengths. When the number of particles in the first
family is much larger than that of the second family, the hole solution goes to
the vortex profile already found in the one-family Calogero model.Comment: 14 pages, no figures, late
Solitons in the Calogero-Sutherland Collective-Field Model
In the Bogomol'nyi limit of the Calogero-Sutherland collective-field model we
find static-soliton solutions. The solutions of the equations of motion are
moving solitons, having no static limit for \l>1. They describe holes and
lumps, depending on the value of the statistical parametar \l.Comment: minor correction
Collective Field Formulation of the Multispecies Calogero Model and its Duality Symmetries
We study the collective field formulation of a restricted form of the
multispecies Calogero model, in which the three-body interactions are set to
zero. We show that the resulting collective field theory is invariant under
certain duality transformations, which interchange, among other things,
particles and antiparticles, and thus generalize the well-known strong-weak
coupling duality symmetry of the ordinary Calogero model. We identify all these
dualities, which form an Abelian group, and study their consequences. We also
study the ground state and small fluctuations around it in detail, starting
with the two-species model, and then generalizing to an arbitrary number of
species.Comment: latex, 53 pages, no figures;v2-minor changes (a paragraph added
following eq. (61)
Anyons as quon particles
The momentum operator representation of nonrelativistic anyons is developed
in the Chern - Simons formulation of fractional statistics. The connection
between anyons and the q-deformed bosonic algebra is established.Comment: 10 pages,Late