Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Tsue, Yasuhiko"'
Autor:
Hayashi, Kentaro, Tsue, Yasuhiko
We investigate the dilepton production rates from annihilation processes of charged pion pairs with modified pion dispersion relations in the inhomogeneous chiral condensed phase. We assume a dual chiral density wave as an inhomogeneous chiral conden
Externí odkaz:
http://arxiv.org/abs/2407.08523
Autor:
Hayashi, Kentaro, Tsue, Yasuhiko
Publikováno v:
International Journal of Modern Physics E, Vol. 32, No. 6 (2023) 2350031 (24 pages)
A possibility of a pseudovector-type quark-antiquark condensed phase, which leads to a quark spin polarized phase, in the quark matter is investigated taking account of the vacuum effects leading to the chiral symmetry breaking by using the Nambu-Jon
Externí odkaz:
http://arxiv.org/abs/2303.04326
Spin polarization and color superconductivity in the Nambu--Jona-Lasinio model at finite temperature
Autor:
Matsuoka, Hiroaki, Tsue, Yasuhiko, da Providencia, Joao, Providencia, Constancia, Yamamura, Masatoshi
Publikováno v:
Phys. Rev. D 95, 054025 (2017)
We investigate the possible existence of spin polarization and color superconductivity in the Nambu--Jona-Lasinio model with a tensor-type interaction at finite density and temperature. The thermodynamic potential is calculated by the functional inte
Externí odkaz:
http://arxiv.org/abs/1611.02394
Autor:
Tsue, Yasuhiko, da Providencia, Joao, Providencia, Constanca, Yamamura, Masatoshi, Bohr, Henrik
In high density quark matter under a strong external magnetic field, possible phases are investigated by using the two-flavor Nambu-Jona-Lasinio model with tensor-type four-point interaction between quarks, as well as the axial-vector-type four-point
Externí odkaz:
http://arxiv.org/abs/1607.01863
Standing on the results for the minimum weight states obtained in the previous paper (I), an idea how to construct the linearly independent basis is proposed for the su(n)-Lipkin model. This idea starts in setting up m independent su(2)-subalgebras i
Externí odkaz:
http://arxiv.org/abs/1605.06880
The minimum weight states of the Lipkin model consisting of n single-particle levels and obeying the su(n)-algebra are investigated systematically. The basic idea is to use the su(2)-algebra which is independent of the su(n)-algebra. This idea has be
Externí odkaz:
http://arxiv.org/abs/1508.07672
Publikováno v:
Phys. Rev. D 92, 034024 (2015)
We investigate the stability of an inhomogeneous chiral condensed phase against low energy fluctuations about a spatially modulated order parameter. This phase corresponds to the so-called dual chiral density wave in the context of quark matter, wher
Externí odkaz:
http://arxiv.org/abs/1504.03185
Concerning the new boson representation presented in Part I, it is proved that this representation obeys the su(2)-algebra in a certain subspace in the whole boson space constructed by the Schwinger boson representation of the su(1,1)-algebra. Some o
Externí odkaz:
http://arxiv.org/abs/1409.3628
With the use of two kinds of boson operators, a new boson representation of the su(2)-algebra is proposed. The basic idea comes from the pseudo su(1,1)-algebra recently given by the present authors. It forms a striking contrast to the Schwinger boson
Externí odkaz:
http://arxiv.org/abs/1409.3626
Autor:
Providência, Constança, da Providência, João, Cordeiro, Flávio, Yamamura, Masatoshi, Tsue, Yasuhiko, Nishiyama, Seiya
Publikováno v:
Annals Phys.324:1666-1675,2009
We present the exact solutions to the equations of the lowest energy states of the colored and color-symmetric sectors of the Bonn quark model, which is SU(3) symmetric and is defined in terms of an effective pairing force with $su(4)$ algebraic stru
Externí odkaz:
http://arxiv.org/abs/0909.3072