Research Profile

Profile

Name: Kotaro Fujisawa

Affiliation: Division of Liberal Arts, Center for Promotion of Higher Education,Kogakuin University

Specialties: Astrophysics, theoretical astrophysics, numerical computation

Research Fields: Neutron stars, white dwarfs, rapidly rotating stars, magnetized stars, continuous gravitational waves, nonlinear numerical methods

Research Overview

There are many kinds of stars in the universe, including extreme objects that are difficult for us to imagine based on our everyday experience on Earth. Among them, neutron stars are among the most compact objects in the universe. They have extremely strong gravity, can rotate tens of times per second, and possess magnetic fields more than one hundred million times stronger than that of the Sun.

Such rapid rotation and strong magnetic fields are thought to drive various astrophysical phenomena related to neutron stars, such as bursts and flares. I study these phenomena by numerically solving equations derived from physical laws. I also work on the development of numerical methods required for these studies, as well as algorithms that make use of quantum computers.

Research Topics

High-density objects such as neutron stars
Rapidly rotating stars
Numerical methods for nonlinear equations and quantum algorithms

Research Keywords

Astrophysics Neutron Stars Gravitational Waves Rapidly Rotating Stars Magnetic Fields Numerical Computation of Nonlinear Equations Quantum Computers