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Neutrino-pair bremsstrahlung by electrons in neutron star crusts
A. D. Kaminker, C. J. Pethick, A. Y. Potekhin +2
Neutrino-pair bremsstrahlung by relativistic degenerate electrons in a neutron-star crust at densities (10^9 - 1.5x10^{14}) g/cm^3 is analyzed. The processes taken into account are…
Bosons with attractive interactions in a trap: Is the ground state fragmented ?
Oe. Elgaroey, C. J. Pethick
Possible fragmentation of a Bose-Einstein condensate with negative scattering length is investigated using a simple two-level model. Our results indicate that fragmentation does no…
Vortices in Bose-Einstein-Condensed Atomic Clouds
Emil Lundh, C. J. Pethick, H. Smith
The properties of vortex states in a Bose-Einstein condensed cloud of atoms are considered at zero temperature. Using both analytical and numerical methods we solve the time-depend…
Relaxation Processes in Clouds of Trapped Bosons above the Bose-Einstein Condensation Temperature
G. M. Kavoulakis, C. J. Pethick, H. Smith
We present a unified account of damping of low-lying collective modes and of relaxation of temperature anisotropies in a trapped Bose gas in the collisionless regime. By means of v…
Liquid crystals in the mantles of neutron stars
C. J. Pethick, A. Y. Potekhin
Recent calculations indicate that in the outer parts of neutron stars nuclei are rod-like or slab-like, rather than roughly spherical. We consider the elastic properties of these p…
Solitary waves in clouds of Bose-Einstein condensed atoms
A. D. Jackson, G. M. Kavoulakis, C. J. Pethick
We consider the conditions under which solitary waves can exist in elongated clouds of Bose-Einstein condensed atoms. General expressions are derived for the velocity, characterist…