Exploring $^3P_0$ Superfluid in Dilute Spin-Polarized Neutron Matter
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866914640825417728 |
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| author | Tajima, Hiroyuki Funaki, Hiroshi Sekino, Yuta Yasutake, Nobutoshi Matsuo, Mamoru |
| author_facet | Tajima, Hiroyuki Funaki, Hiroshi Sekino, Yuta Yasutake, Nobutoshi Matsuo, Mamoru |
| contents | We explore the theoretical possibility of $^3P_0$ neutron superfluid in dilute spin-polarized neutron matter, which may be relevant to the crust region of a magnetized neutron star. In such a dilute regime where the neutron Fermi energy is less than 1 MeV, the $^1S_0$ neutron superfluid can be suppressed by a strong magnetic field of the compact star. In the low-energy limit relevant for dilute neutron matter, the $^3P_0$ interaction is stronger than the $^3P_2$ one which is believed to induce the triplet superfluid in the core. We present the ground-state phase diagram of dilute neutron matter with respect to the magnetic field and numerically estimate the critical temperature of the $^3P_0$ neutron superfluid, which is found to exceed $10^7$ K. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_08690 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Exploring $^3P_0$ Superfluid in Dilute Spin-Polarized Neutron Matter Tajima, Hiroyuki Funaki, Hiroshi Sekino, Yuta Yasutake, Nobutoshi Matsuo, Mamoru Nuclear Theory High Energy Astrophysical Phenomena Quantum Gases Superconductivity We explore the theoretical possibility of $^3P_0$ neutron superfluid in dilute spin-polarized neutron matter, which may be relevant to the crust region of a magnetized neutron star. In such a dilute regime where the neutron Fermi energy is less than 1 MeV, the $^1S_0$ neutron superfluid can be suppressed by a strong magnetic field of the compact star. In the low-energy limit relevant for dilute neutron matter, the $^3P_0$ interaction is stronger than the $^3P_2$ one which is believed to induce the triplet superfluid in the core. We present the ground-state phase diagram of dilute neutron matter with respect to the magnetic field and numerically estimate the critical temperature of the $^3P_0$ neutron superfluid, which is found to exceed $10^7$ K. |
| title | Exploring $^3P_0$ Superfluid in Dilute Spin-Polarized Neutron Matter |
| topic | Nuclear Theory High Energy Astrophysical Phenomena Quantum Gases Superconductivity |
| url | https://arxiv.org/abs/2305.08690 |