395 research outputs found
Boson Stars with Large Self-interaction in (2+1) dimensions: an Exact Solution
An exact solution for a nonrotating boson star in (2+1) dimensional gravity
with a negative cosmological constant is found. The relations among mass,
particle number, and radius of the (2+1) dimensional boson star are shown.Comment: 16 pages, 7 figures, needs REVTeX (2nd revised version
Deconstructing Scalar QED at Zero and Finite Temperature
We calculate the effective potential for the WLPNGB in a world with a
circular latticized extra dimension. The mass of the WLPNGB is calculated from
the one-loop quantum effect of scalar fields at zero and finite temperature. We
show that a series expansion by the modified Bessel functions is useful to
calculate the one-loop effective potentials.Comment: 12 pages, 2 figures. RevTeX
Shape of Deconstruction
We construct a six-dimensional Maxwell theory using a latticized extra space,
the continuum limit of which is a shifted torus recently discussed by Dienes.
This toy model exhibits the correspondence between continuum theory and
discrete theory, and give a geometrical insight to theory-space model building.Comment: 10 pages, 2 figures, RevTeX4. a citation adde
Quantum Scattering in Two Black Hole Moduli Space
We discuss the quantum scattering process in the moduli space consisting of
two maximally charged dilaton black holes. The black hole moduli space geometry
has different structures for arbitrary dimensions and various values of dilaton
coupling. We study the quantum effects of the different moduli space geometries
with scattering process. Then, it is found that there is a resonance state on
certain moduli spaces.Comment: 15 pages, 19 figures, RevTeX 3.
Rotating Boson Star with Large Self-interaction in (2+1) dimensions
Solutions for rotating boson stars in (2+1) dimensional gravity with a
negative cosmological constant are obtained numerically. The mass, particle
number, and radius of the (2+1) dimensional rotating boson star are shown.
Consequently we find the region where the stable boson star can exist.Comment: 14 pages, 6 figures, RevTe
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