5 citations · 7 across the 8 of their papers we have counts for
9 papers
Exact anomalous current fluctuations in the strong-anisotropy limit of the XXZ chain
Taiki Ishiyama, Taiga Kurose, Kazuya Fujimoto +1
We study spin-current fluctuations of the folded XXZ chain, which describes the strong-anisotropy limit of the XXZ chain. We obtain an exact expression for the moment-generating fu…
Exact Anomalous Current Fluctuations in Quantum Many-Body Dynamics
Kazuya Fujimoto, Taiki Ishiyama, Taiga Kurose +2
Fluctuations of integrated currents have attracted considerable interest over the past decades in the context of statistical mechanics. Recently, anomalous current fluctuations, ch…
Universal Family-Vicsek scaling in quantum gases far from equilibrium
Kiryang Kwon, Kazuya Fujimoto, Junhyeok Hur +6
Fluctuations in the growing surfaces of classical systems can exhibit universal scaling behavior, known as Family-Vicsek (FV) scaling. Although this phenomenon was originally disco…
Integral formula for the propagator of the one-dimensional Hubbard model
Taiki Ishiyama, Kazuya Fujimoto, Tomohiro Sasamoto
We present an exact integral formula for the multi-particle propagator of the one-dimensional Fermi--Hubbard model on an infinite lattice. The proof is based on the nested Bethe an…
Exact Current Fluctuations in a Tight-Binding Chain with Dephasing Noise
Taiki Ishiyama, Kazuya Fujimoto, Tomohiro Sasamoto
The full counting statistics (FCS) of current has long provided fundamental insights into nonequilibrium systems. Recently, the FCS in quantum many-body systems has attracted growi…
Exact density profile in a tight-binding chain with dephasing noise
Taiki Ishiyama, Kazuya Fujimoto, Tomohiro Sasamoto
We theoretically investigate the many-body dynamics of a tight-binding chain with dephasing noise on the infinite interval. We obtain the exact solution of an average particle-dens…
Quantum Transport in Interacting Spin Chains: Exact Derivation of the GUE Tracy-Widom Distribution
Kazuya Fujimoto, Tomohiro Sasamoto
We theoretically study quantum spin transport in a one-dimensional folded XXZ model with an alternating domain-wall initial state via the Bethe ansatz technique, exactly demonstrat…
Exact Solution of Bipartite Fluctuations in One-Dimensional Fermions
Kazuya Fujimoto, Tomohiro Sasamoto
Emergence of hydrodynamics in quantum many-body systems has recently garnered growing interest. The recent experiment of ultracold atoms [J. F. Wienand {\it et al.}, Nat. Phys. (20…
Random Matrix Statistics in Propagating Correlation Fronts of Fermions
Kazuya Fujimoto, Tomohiro Sasamoto
We theoretically study propagating correlation fronts in non-interacting fermions on a one-dimensional lattice starting from an alternating state, where the fermions occupy every o…