Phase transition to the state with nonzero average helicity in dense neutron matter
A. A. Isayev, J. Yang* 1)
Kharkov Institute of Physics and Technology, 61108 Kharkov, Ukraine
Kharkov National University, 61077 Kharkov, Ukraine
*Department of Physics and the Institute for the Early Universe,
Ewha Womans University, Seoul 120-750, Korea
Abstract
The possibility of the appearance of the states with a
nonzero average helicity in neutron matter is studied in the model
with the Skyrme effective interaction. By providing the analysis
of the self-consistent equations at zero temperature, it is shown
that neutron matter with the Skyrme BSk18 effective force undergoes
at high densities a phase transition to the state in which the
degeneracy with respect to helicity of neutrons is spontaneously
removed.