Quarks and Compact Stars (QCS)
Oct. 20-22, 2014, KIAA at Peking University, Beijing - P. R. China



Invited Talk

Exploring physics of dense matter using gravitational waves from binary neutron star merger


Yuichiro Sekiguchi


Kyoto University


Abstract: Binary neutron star mergers are quite interesting phenomena in the universe. They are ones of the most promising sources of gravitational waves. The information carried by gravitational waves would contain dynamical responses of neutron stars, which can be used to explore the physics of dense matter. In this sense, binary neutron star mergers may be regarded as a cosmological collider or laboratory to explore the fundamental physics. To study binary neutron star mergers, numerical relativity is the most viable approach and recent advances in this field have yielded a number of important results, such as extraction of information of radius from gravitational waves, a possible way to constrain the composition of the neutron star matter, and importance of the equation of state of dense matter on the origin of heavy elements. In this talk, starting from brief discussions on the relationship among structure of neutron star, equation of state, and nuclear parameters like symmetry energies, I will review recent developments and discuss future prospects.