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21 papers · 1 filter
Ground State of 2D Quantum Gravity and Spectral Density of Random Matrices
Marek Karliner, Alexander Migdal, Boris Rusakov
We compute the exact spectral density of random matrices in the ground state of the quantum hamiltonian corresponding to the matrix model whose double scaling limit describes pure…
Monte Carlo Simulations of 2-Dimensional Quantum Gravity Coupled to Matter
T. Filk, M. Marcu, B. Scheffold
We present results of a high precision Monte Carlo simulation of dynamically triangulated random surfaces (up to 34,000 triangles) coupled to one scalar field (). Th…
Bose-Einstein Correlations for Mixed Neutral Mesons
Harry J. Lipkin
Correlations are shown to arise in nonidentical mixed-particle pairs like when observed in identical decay modes like in multiparticle final states contain…
A tour through N=2 strings
Neil Marcus
I give an overview of open, closed and heterotic N=2 strings. At the tree level I derive the effective field theories of all the strings, and discuss the group theory of the N=2 op…
Cluster Algorithm for Vertex Models
H. G. Evertz, G. Lana, M. Marcu
We present a new type of cluster algorithm that strongly reduces critical slowing down in simulations of vertex models. Since the clusters are closed paths of bonds, we call it the…
Fireballs in the Galactic Halo and -Ray Bursts
Tsvi Piran, Amotz Shemi
If gamma ray burst sources are in the galactic halo they inevitably involve a creation of an opaque pair plasma fireball, just like in cosmological sources. We find that the typica…