12,335 research outputs found
Formation of Black Holes in Topologically Massive Gravity
We present an exact solution in 3-dimensional topologically massive gravity
with negative cosmological constant which dynamically interpolates between a
past horizon and a chiral AdS pp-wave. Similarly, upon time reversal, one
obtains an AdS pp-wave with a future event horizonComment: Improved presentation. Extended discussion of linear stability and
regularity of the metric. Added reference
Scaling tests with dynamical overlap and rooted staggered fermions
We present a scaling analysis in the 1-flavor Schwinger model with the full
overlap and the rooted staggered determinant. In the latter case the chiral and
continuum limit of the scalar condensate do not commute, while for overlap
fermions they do. For the topological susceptibility a universal continuum
limit is suggested, as is for the partition function and the Leutwyler-Smilga
sum rule. In the heavy-quark force no difference is visible even at finite
coupling. Finally, a direct comparison between the complete overlap and the
rooted staggered determinant yields evidence that their ratio is constant up to
effects.Comment: 28 pages, 20 figures containg 37 graphs. v2: 6 new references, 2 new
footnotes (to match published version
The Schwinger Model on a circle: relation between Path Integral and Hamiltonian approaches
We solve the massless Schwinger model exactly in Hamiltonian formalism on a
circle. We construct physical states explicitly and discuss the role of the
spectral flow and nonperturbative vacua. Different thermodynamical correlation
functions are calculated and after performing the analytical continuation are
compared with the corresponding expressions obtained for the Schwinger model on
the torus in Euclidean Path Integral formalism obtained before.Comment: 40 page
Fungal Genetics Reports #57, 2010
Editorial board, publisher, and contact information for #57, 201
Foreword
The 47th edition of the Fungal Genetics Newsletter contains articles and notes on a wide variety of topics. As usual, the Aspergillus and Neurospora bibliographies are included, as is the most recent Fungal Genetics Stock Center mailing list
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