88 citations · 289 across the 24 of their papers we have counts for
4 papers · 1 filter
Dielectric breakdown of strongly correlated insulators in one dimension: Universal formula from non-Hermitian sine-Gordon theory
Kazuaki Takasan, Masaya Nakagawa, Norio Kawakami
Application of a strong electric field to insulators induces a finite current. This phenomenon is called dielectric breakdown and is known as a fundamental nonequilibrium and nonli…
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…
Wannier representation of Floquet topological states
Masaya Nakagawa, Robert-Jan Slager, Sho Higashikawa +1
A universal feature of topological insulators is that they cannot be adiabatically connected to an atomic limit, where individual lattice sites are completely decoupled. This prope…
Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction
Kazuki Yamamoto, Masaya Nakagawa, Kyosuke Adachi +3
Motivated by recent experimental advances in ultracold atoms, we analyze a non-Hermitian (NH) BCS Hamiltonian with a complex-valued interaction arising from inelastic scattering be…