- 7月29日 (水), 13:30-
- Zoom Online Seminar （URLはwatanabe.hikaru.43n[アット]st.kyoto-u.ac.jpまでお問い合わせください。）
- Mr. Tomohiro Hisamitsu
- (Condensed Matter Theory Group)
- "Analog of Anderson theorem for p-wave superfluid 3He in Aerogel" ※日本語での講演（seminar in Japanese）
Abstract: Recently, one analog of the Anderson’s theorem [2,3] for the s-wave superconductor has attracted much interest in the context of the p-wave polar pairing state  of superfluid 3 He in a model aerogel in the limit of strong uniaxial anisotropy . We discuss to what extent the theorem is satisfied in the polar phase in real aerogels by examining the normal to polar transition temperature Tc and the low temperature behavior  of the superfluid energy gap under an anisotropy of a moderate strength and comparing the obtained results with experimental data. The situation in which Anderson’s theorem clearly breaks down is briefly discussed. Reference:  T. Hisamitsu, M. Tange, and R. Ikeda, Phys. Rev. B 101, 100502 (2020).  I. A. Fomin, J. Exp. Theor. Phys. 127, 933 (2018).  P. W. Anderson, J. Phys. Chem. Sol. 11, 26 (1959).  V. B. Eltsov, T. Kamppinen, J. Rysti, and G. E. Volovik, arXiv:1908.01645.  V. V. Dmitriev, A. A. Senin, A. A. Soldatov, and A. N. Yudin, Phys. Rev. Lett. 115, 165304 (2015).  K. Aoyama and R. Ikeda, Phys. Rev. B 73, 060504(R) (2006).