Welcome to Yukihiro Kanda's home page!

I am a postdoctoral researcher in Institute for Cosmic Ray Research (ICRR) theory group, the University of Tokyo.

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Research Interests

Many elementary particle physicists study models beyond the standard model to explain the origin of matter, dark matter and something. In these models, new symmetries are assumed to exist, which are believed to be broken during the early stage of the universe. By focusing on topological defects produced during symmetry breakings, we can classify various symmetry-breaking models and validate them. My particular interest lies in topological defects and how we can use them to detect new physics.

Cosmic strings are linear topological defects and their network emits gravitational waves. Many ongoing or plannd gravitational wave observations are expected to detect the presence of cosmic strings. In particular, resent results from Pulsar Timing Array collaborations suggest the existence of cosmic strings, except for the stable strings produced during the breaking of U(1) gauge symmetry. Given the significance of studying various types of cosmic strings, I am exploring new cosmic string scenarios within different symmetry-breaking models. My research focuses on validating these models from the perspective of cosmic strings.

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Contact

e-mail: kanday95_at_icrr.u-tokyo.ac.jp

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