TY - JOUR
T1 - Strongly Interacting Multi-component Fermions
T2 - 28th International Conference on Low Temperature Physics, LT 2018
AU - Tajima, Hiroyuki
AU - Hatsuda, Tetsuo
AU - Ohashi, Yoji
N1 - Funding Information:
We thank G. Baym, P. Naidon, P. van Wyk, S. Furusawa, and H. Togashi for useful discussions. H. T. was supported by a Grant-in-Aid for JSPS fellows (No. 17J03975). T. H. was supported by RIKEN iTHES Project and RIKEN iTHEMS Program. Y. O. was supported by the KiPAS project at Keio University. This work was supported by Grant-in-Aid for Scientific Research from MEXT and JSPS in Japan (Nos. 15K00178, 15H00840, 15H03663, 16K05503).
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/4/19
Y1 - 2018/4/19
N2 - We investigate an asymmetric nuclear matter consisting of protons and neutrons with spin degrees of freedom (σ = ↑, ↓). By generalizing the Nozières and Schmitt-Rink theory for two-component Fermi gases to the four-component case, we analyze the critical temperature T c of the superfluid phase transition. Although the pure neutron matter exhibits the dineutron condensation in the low-density region, the superfluid instability toward the deuteron condensation is found to take place as the proton fraction increases. We clarify the mechanism of the competition between the deuteron condensation and dineutron condensation. Our results would serve for understanding the properties of asymmetric nuclear matter realized in the interior of neutron stars.
AB - We investigate an asymmetric nuclear matter consisting of protons and neutrons with spin degrees of freedom (σ = ↑, ↓). By generalizing the Nozières and Schmitt-Rink theory for two-component Fermi gases to the four-component case, we analyze the critical temperature T c of the superfluid phase transition. Although the pure neutron matter exhibits the dineutron condensation in the low-density region, the superfluid instability toward the deuteron condensation is found to take place as the proton fraction increases. We clarify the mechanism of the competition between the deuteron condensation and dineutron condensation. Our results would serve for understanding the properties of asymmetric nuclear matter realized in the interior of neutron stars.
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U2 - 10.1088/1742-6596/969/1/012003
DO - 10.1088/1742-6596/969/1/012003
M3 - Conference article
AN - SCOPUS:85046080290
SN - 1742-6588
VL - 969
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012003
Y2 - 9 August 2017 through 16 August 2017
ER -