2 papers
cond-mat.str-el2023
New approach to extract important degrees of freedom in quantum dynamics using singular value decomposition: Application to linear optical spectrum in two-dimensional Mott insulators
J. Tokimoto, S. Ohmura, A. Takahashi +2
We propose a new approach to extract the important degrees of freedom in quantum dynamics induced by an external stimulus. We calculate the coefficient matrix numerically, where th…
cond-mat.quant-gas2018
Excitation of the Higgs Mode in a Superfluid Fermi Gas in the BCS-BEC Crossover
Jun Tokimoto, Shunji Tsuchiya, Tetsuro Nikuni
In quantum many-body systems with spontaneous breaking of continuous symmetries, Higgs modes emerge as collective amplitude oscillations of order parameters. Recently, Higgs mode h…