5 citations · 9 across the 6 of their papers we have counts for
6 papers
Algebro-geometric approach to a fermion self-consistent field theory on coset space SU(m+n)/S(U(m) x U(n))
Seiya Nishiyama, Joao da Providencia
The integrability-condition method is regarded as a mathematical tool to describe the symmetry of collective sub-manifold. We here adopt the particle-hole representation. In the co…
Spin polarizations under a pseudovector interaction between quarks with the Kobayashi-Maskawa-'t Hooft term in high density quark matter
M. Morimoto, Y. Tsue, J. da Providencia +2
A possibility of a quark spin polarization originated from a pseudovector condensate is investigated in the three-flavor Nambu-Jona-Lasinio model with the Kobayashi-Maskawa-'t Hoof…
Mean-field theory based on the \mathfrak{Jacobi~hsp} := semi-direct sum \mathfrak{h}_N \rtimes \mathfrak{sp}(2N,\mathbb{R})_\mathbb{C} algebra of boson operators
Seiya Nishiyama, Joao Da Providencia
In this paper, we give an expression for canonical transformation group with Grassmann variables, basing on the \mathfrak{Jacobi~hsp} \!:= semi-direct sum \mathfrak{h}_{N} \rtimes…
Non self-adjoint operators with real spectra and extensions of quantum mechanics
N. Bebiano, J. da Providência
In this article, we review the general quantum mechanical setting associated to a non self-adjoint Hamiltonian with real spectrum. Spectral properties of the Hamiltonian of a simpl…
Quark spin polarization and spontaneous magnetization in high density quark matter
Y. Tsue, J. da Providencia, C. Providencia +3
By using the Nambu-Jona-Lasinio model with a tensor-type four-point interaction between quarks, it is shown that there exists a possibility of a spin polarized phase in quark matte…
A possibility of quark spin polarized phase in high density quark matter
Y. Tsue, J. da Providencia, C. Providencia +2
It is shown that the quark spin polarization may occur for each quark flavor by the use of the Nambu-Jona-Lasinio model with a tensor-type four-point interaction between quarks, wh…