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176 papers · 1 filter
X-ray Spectral Characteristics of Ginga Gamma-Ray Bursts
T. E. Strohmayer, E. E. Fenimore, T. Murakami +1
The proportional counter and scintillator on Ginga provided unprecented spectral coverage of GRBs, from 2 - 400 keV. Below 20 keV we find evidence for a positive spectral number in…
The Average Temporal and Spectral Evolution of Gamma-Ray Bursts
E. E. Fenimore
We have averaged bright BATSE bursts to uncover the average overall temporal and spectral evolution of gamma-ray bursts (GRBs). We align the temporal structure of each burst by set…
Cryptography, Quantum Computation and Trapped Ions
Richard J. Hughes
The significance of quantum computation for cryptography is discussed. Following a brief survey of the requirements for quantum computational hardware, an overview of the ion trap…
Kinematic Arguments Against Single Relativistic Shell Models for Gamma-Ray Bursts
E. E. Fenimore, E. Ramirez, M. C. Sumner
Two main types of models have been suggested to explain the long durations and multiple peaks of Gamma-Ray Bursts (GRBs). In one, there is a very quick release of energy at a centr…
Variability in Shell Models of Gamma-Ray Bursts
M. C. Sumner, E. E. Fenimore
Many cosmological models of gamma-ray bursts (GRBs) assume that a single relativistic shell carries kinetic energy away from the source and later converts it into gamma rays, perha…
Time evolution of correlation functions in Non-equilibrium Field Theories
Luis M. A. Bettencourt, Christof Wetterich
We investigate the non-equilibrium properties of an N-component scalar field theory. The time evolution of the correlation functions for an arbitrary ensemble of initial conditions…