Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Shinjo, Kazuya"'
In periodically driven (Floquet) systems, evolution typically results in an infinite-temperature thermal state due to continuous energy absorption over time. However, before reaching thermal equilibrium, such systems may transiently pass through a me
Externí odkaz:
http://arxiv.org/abs/2403.16718
Autor:
Shinjo, Kazuya, Tohyama, Takami
Publikováno v:
APL Mater. 12, 041109 (2024)
Recent advancements in pulse laser technology have facilitated the exploration of non-equilibrium spectroscopy of electronic states in the presence of strong electric fields across a broad range of photon energies. The Keldysh crossover serves as an
Externí odkaz:
http://arxiv.org/abs/2401.12584
Publikováno v:
Phys. Rev. B 108, 195118 (2023)
The recent experimental observations of loop current in Sr$_{2}$IrO$_{4}$, YBa$_{2}$Cu$_{3}$O$_{7}$, and Sr$_{14}$Cu$_{24}$O$_{41}$ have inspired a theoretical study that broadly redefines loop current as a manifestation of quantum liquid crystals. U
Externí odkaz:
http://arxiv.org/abs/2305.13557
Publikováno v:
Phys. Rev. B 108, 035113 (2023)
Photoinduced nonequilibrium states in the Mott insulators reflect the fundamental nature of competition between itinerancy and localization of the charge degrees of freedom. The spin degrees of freedom will also contribute to the competition in a dif
Externí odkaz:
http://arxiv.org/abs/2305.05498
Publikováno v:
Phys. Rev. B 107, 195103 (2023)
Owning to their high controllability, laser pulses have contributed greatly to our understanding of strongly correlated electron systems. However, typical multicycle pulses do not control the symmetry of systems that plays an important role in the em
Externí odkaz:
http://arxiv.org/abs/2211.08694
Publikováno v:
Commun. Phys. 6, 41 (2023)
The photoexcitation of a Mott insulator on a square lattice weakens the intensity of both single- and two-magnon excitations as observed in time-resolved resonant-inelastic X-ray scattering and time-resolved Raman scattering, respectively. However, t
Externí odkaz:
http://arxiv.org/abs/2207.03141
Publikováno v:
Phys. Rev. Res. 4, L032019 (2022)
The elucidation of nonequilibrium states in strongly correlated systems holds the key to emergence of novel quantum phases. The nonequilibrium-induced insulator-to-metal transition is particularly interesting since it reflects the fundamental nature
Externí odkaz:
http://arxiv.org/abs/2202.04322
Publikováno v:
Phys. Rev. B 104, 205123 (2021)
The real part of optical conductivity $\text{Re}\sigma(\omega)$ of the Mott insulators has a large amount of information on how spin and charge degrees of freedom interact with each other. By using the time-dependent density-matrix renormalization gr
Externí odkaz:
http://arxiv.org/abs/2109.06226
Publikováno v:
Phys. Rev. B 103, 035141 (2021)
Optical measurements in doped Mott insulators have discovered the emergence of spectral weights at mid-infrared (MIR) upon chemical doping and photodoping. MIR weights may have a relation to string-type excitation of spins, which is induced by a dope
Externí odkaz:
http://arxiv.org/abs/2011.10686
Publikováno v:
Phys. Rev. Lett. 126, 127404 (2021)
Motivated by the recent development of time-resolved resonant-inelastic x-ray scattering (TRRIXS) in photoexcited antiferromagnetic Mott insulators, we numerically investigate momentum-dependent transient spin dynamics in a half-filled Hubbard model
Externí odkaz:
http://arxiv.org/abs/2010.06151