Superfluidity of a condensate with np pairing correlations in asymmetric nuclear matter

• Дата: 2001
• Автори: Akhiezer, A.I., Isayev, A.A., Peletminsky, S.V., Yatsenko, A.A.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2001
• Назва видання: Вопросы атомной науки и техники
• Теми: Quantum fluids
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/80045
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Superfluidity of a condensate with np pairing correlations in asymmetric nuclear matter / A.I. Akhiezer, A.A. Isayev, S.V. Peletminsky, A.A. Yatsenko // Вопросы атомной науки и техники. — 2001. — № 6. — С. 334-338. — Бібліогр.: 13 назв. — англ.

Influence of asymmetry on superfluidity of nuclear matter with triplet-singlet pairing of nucleons (in spin and isospin spaces) is considered within the framework of a Fermi-liquid theory. Solutions of self-consistent equations for the energy gap at T=0 are obtained. It is shown, that if the chemical potentials of protons and neutrons are determined in the zero gap width approximation, then the energy gap for some values of density and asymmetry parameter of nuclear matter demonstrates double-valued behavior. However, with account for the feedback of pairing correlations through the normal distribution functions of nucleons two-valued behavior of the energy gap turns into universal one-valued behavior. At T=0 the energy gap has a discontinuities as a function of density in a narrow layer model. These discontinuities depend on the asymmetry parameter.