Upcoming Seminars

Date/Place Oct. 24th (Tues.) 15:30-16:30 / H711
Name Minoru Tanaka (Osaka Univ.)
Title Towards atomic neutrino spectroscopy
Abstract Radiative emission of neutrino pair (RENP) is a novel tool of neutrino physics. It turns out that the photon spectrum in the RENP provides us important information of neutrino properties to be unveiled, such as absolute mass, Dirac/Majorana nature and CP violating phases. Although the RENP process inevitably occurs in the standard model, a rate enhancement mechanism is mandatory to observe it and prove the nature of neutrinos. In this seminar, I explain the principle of the rate enhancement using quantum coherence in a macroscopic target and how the neutrino properties affect the RENP spectrum. I also present some experimental results that exhibit the enhancement mechanism.

 

Date/Place Oct. 31th (Tues.) 15:30-16:30 / H711
Name Takuya Kanazawa (RIKEN)
Title Random matrices for supersymmetric SYK models
Abstract The Sachdev-Ye-Kitaev (SYK) model is a useful arena to study quantum chaos and holography. In this talk, I first review the SYK model with supersymmetry (SUSY) and then present its complete symmetry classification based on the ten-fold way of random matrix theory (RMT). I will also show numerical evidence that demonstrate precise agreement between energy level fluctuations of SYK models with N=1&2 SUSY and those of RMT. This work is based on my paper JHEP09(2017)050 (arXiv:1706.03044 [hep-th]).

 

Past Seminars