2012/07/31 by Hajime Sotani, Toshiki Maruyama, Toshitaka Tatsumi · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Hadron #High-pressure geophysics and materials #Mechanics #Nuclear physics #Particle physics #Physics #Pulsars and Gravitational Waves Research #Quark #Seismic Waves and Analysis #Surface tension #Thermodynamics #astro-ph.HE #gr-qc
paper · pdf · doi:10.1016/j.nuclphysa.2013.03.011
published as Nuc.Phys.A906:37,2013 · accepted for publication in NPA
arxiv created 2013/03/18 · openalex publication_date 2013/03/21 · arxiv updated 2015/06/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Inside neutron stars, the hadron-quark mixed phase is expected during the first order phase transition from the hadron phase to the quark phase. The geometrical structure of the mixed phase strongly depends on the surface tension at the hadron-quark interface. We evaluate the shear modulus which is one of the specific properties of the hadron-quark mixed phase. As an application, we study shear oscillations due to the hadron-quark mixed phase in neutron stars. We find that the frequencies of shear oscillations depend strongly on the surface tension; with a fixed stellar mass, the fundamental frequencies are almost proportional to the surface tension. Thus, one can estimate the value of surface tension via the observation of stellar oscillations with the help of the information on the stellar mass.