212 citations · 1.4k across the 54 of their papers we have counts for
3 papers · 1 filter
Multi-channel S-matrices from energy levels in finite boxes
Evan Berkowitz, Thomas D. Cohen, Patrick Jefferson
We show that for a generic quantum mechanical system with more than one open scattering channel, it is not possible to fully reconstruct the theory's S-matrix from spectral informa…
Thermodynamics of nuclear condensates and phase transitions in white dwarfs
Paulo F. Bedaque, Evan Berkowitz, Srimoyee Sen
We study the thermodynamics of helium at densities relevant for white dwarf physics. We find evidence that, as the temperature is increased, there is first a first order transition…
Neutrino Emission from Helium White Dwarfs with Condensed Cores
Paulo F. Bedaque, Evan Berkowitz, Aleksey Cherman
The possibility that ions in a helium white dwarf star are in a Bose-Einstein condensed state has been explored recently. In particular, it has been argued that the resulting novel…