iTHEMS theoretical physics seminar
Lefschetz-thimble inspired analysis of the Dykhne–Davis–Pechukas method and an application for the Schwinger Mechanism
August 21 at 13:00 - 14:30, 2020
Dr. Takuya Shimazaki (Researcher, Hadron Theory Group, The University of Tokyo)
Dykhne–Davis–Pechukas (DDP) method is a common approximation scheme for the transition probability in two-level quantum systems, as realized in the Landau–Zener effect, leading to an exponentially dam...more
Venue: via Zoom
Event Official Language: English
Nambu-Goldstone fermion in a Bose-Fermi mixture with an explicitly broken supersymmetry
August 7 at 13:00 - 14:30, 2020
Dr. Hiroyuki Tajima (PhD, Department of Natural Science, Kochi University)
Supersymmetry, which is a symmetry associated with interchange between bosons and fermions, is one of the most important symmetries in high-energy physics but its evidence has never been observed yet....more
Venue: via Zoom
Event Official Language: English
Complex Langevin study of an attractively interacting two-component Fermi gas in 1D with population imbalance
July 10 at 13:30 - 14:30, 2020
Dr. Shoichiro Tsutsui (Postdoctral Researchers, Quantum Hadron Physics Laboratory, RIKEN)
We investigate an attractively interacting two-component Fermi gas in 1D described by the Gaudin-Yang model with population imbalance. While the Gaudin-Yang model is known as a solvable model based on...more
Venue: via Zoom
Event Official Language: English
Field theoretical approach to relativistic hydrodynamics
June 12 at 13:00 - 14:30, 2020
Dr. Masaru Hongo (Visiting Scientist (Academia), iTHEMS)
Hydrodynamics is a low-energy effective theory of a conserved charge density, which describes a long-distance and long-time behavior of many-body systems. It is applicable not only to a non-relativist...more
Event Official Language: English