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Jan 27 – 30, 2025
Kyoto University
Asia/Tokyo timezone
Have a nice trip to Kyoto! See you soon!

GPE Calculations for Superfluid Neutron Quantum Vortices and Superconducting Proton Fluxtubes in Neutron Stars

Jan 29, 2025, 4:40 PM
25m
Maskawa Hall (Kyoto University)

Maskawa Hall

Kyoto University

Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto City, Kyoto 606-8502, Japan
Contributed talk Oral Presentation

Speaker

Tatsuhiro HATTORI (Institute of Science Tokyo)

Description

Neutron stars exhibit sudden changes of its rotational velocity, known as "pulsar glitches". It has been believed that glitches are mainly caused by superfluid neutron vortices in the inner crust of neutron stars. However, importance of contributions of the outer core has been recently discussed, and further microscopic investigations of quantum vortices and flux-tubes in the outer core of neutron stars are highly desired.
In this study, we investigate the interaction between quantum vortices of $^3P_2$ superfluid neutrons and flux-tubes of $^1S_0$ superconducting protons in the outer core of neutron stars, based on a successful bosonic theory of superfluid, the Gross-Pitaevskii equation (GPE). In this talk, we will discuss how the $^3P_2$ superfluid vortices interact with proton flux-tubes under a magnetic field.

Primary author

Tatsuhiro HATTORI (Institute of Science Tokyo)

Co-author

Kazuyuki SEKIZAWA (Institute of Science Tokyo)

Presentation materials