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71 papers · 1 filter
On the Microcanonical Entropy of a Black Hole
Rajat K. Bhaduri, Muoi N. Tran, Saurya Das
It has been suggested recently that the microcanonical entropy of a system may be accurately reproduced by including a logarithmic correction to the canonical entropy. In this pape…
Averaging For Solitons With Nonlinearity Management
D. E. Pelinovsky, P. G. Kevrekidis, D. J. Frantzeskakis
We develop an averaging method for solitons of the nonlinear Schr{ö}dinger equation with periodically varying nonlinearity coefficient. This method is used to effectively describe…
Coherence, incoherence and scaling along the c axis of YBa_2Cu_3O_{6+x}
C. C. Homes, S. V. Dordevic, D. A. Bonn +3
The optical properties of single crystals of YBa_2Cu_3O_{6+x} have been examined along the c axis above and below the critical temperature (T_c) for a wide range of oxygen dopings.…
Discovery of another peculiar radial distribution of Blue Stragglers in Globular Clusters: The case of 47 Tuc
Francesco R. Ferraro, Giacomo Beccari, Robert T. Rood +3
We have used high resolution WFPC2-HST and wide field ground-based observations to construct a catalog of blue straggler stars (BSS) in the globular cluster 47 Tuc spanning the ent…
The Integer Valued SU(3) Casson Invariant for Brieskorn spheres
Hans U. Boden, Christopher M. Herald, Paul A. Kirk
We develop techniques for computing the integer valued SU(3) Casson invariant. Our method involves resolving the singularities in the flat moduli space using a twisting perturbatio…
A Two-Phase Chemical Enrichment Model for the Milky Way Globular Cluster System
Marcel L. VanDalfsen, William E. Harris
Many globular cluster systems have a distinct bimodal metallicity distribution function (MDF) which has strikingly similar features in many large galaxies of all types. By using th…