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Mutual friction in helium II: A microscopic approach
(American Institute of Physics, 2009-12)
We develop a microscopic model of mutual friction represented by the dissipative dynamics of a normal fluid flow which interacts with the helical normal modes of vortices comprising a lattice in thermal equilibrium. Such ...
Vortex pseudomomentum and dissipation in a superfluid vortex lattice
(IOP Publishing, 2008-07)
We propose an alternative approach to the dissipative vortex dynamics occurring in a superfluid vortex lattice at finite temperatures. Focusing upon the pseudomomentum of a vortex and its surrounding quasiparticles, we ...
Nonadiabatic calculations of the oscillator strengths for the helium atom in the hyperspherical adiabatic approach
(Iop Publishing Ltd, 2000-07-28)
Energies and wavefunctions are calculated for the bound states of the helium atom in the hyperspherical adiabatic approach by the full inclusion of nonadiabatic couplings. We show that the use of appropriate asymptotic ...
Nonadiabatic calculations of the oscillator strengths for the helium atom in the hyperspherical adiabatic approach
(Iop Publishing Ltd, 2000-07-28)
Energies and wavefunctions are calculated for the bound states of the helium atom in the hyperspherical adiabatic approach by the full inclusion of nonadiabatic couplings. We show that the use of appropriate asymptotic ...
A faint type of supernova from a white dwarf with a helium-rich companion
(2010)
Supernovae are thought to arise from two different physical processes. The cores of massive, short-lived stars undergo gravitational core collapse and typically eject a few solar masses during their explosion. These are ...