774 citations · 3.8k across the 47 of their papers we have counts for
4 papers · 1 filter
Higgs Mode in Superconductors
Ryo Shimano, Naoto Tsuji
When a continuous symmetry of a physical system is spontaneously broken, two types of collective modes typically emerge: the amplitude and phase modes of the order-parameter fluctu…
Nature of superconducting fluctuation in photo-excited systems
Ryuta Iwazaki, Naoto Tsuji, Shintaro Hoshino
The photo-excited state associated with superconducting fluctuation above the superconducting critical temperature is studied based on the time-dependent Ginzburg-Laundau app…
Dynamical sign reversal of magnetic correlations in dissipative Hubbard models
Masaya Nakagawa, Naoto Tsuji, Norio Kawakami +1
In quantum magnetism, the virtual exchange of particles mediates an interaction between spins. Here, we show that an inelastic Hubbard interaction fundamentally alters the magnetis…
SO(4) FLEX+DMFT formalism with SU(2)SU(2)-symmetric impurity solver for superconductivity in the repulsive Hubbard model
Sharareh Sayyad, Naoto Tsuji, Massimo Capone +1
Here we have developed a FLEX+DMFT formalism, where the symmetry properties of the system are incorporated by constructing a SO(4) generalization of the conventional fluctuation-ex…