975 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP429 papers
- Kyoto UniversityJP151 papers
- RIKENJP142 papers
- Tokyo Institute of TechnologyJP134 papers
- High Energy Accelerator Research OrganizationJP100 papers
- Tohoku UniversityJP100 papers
- Nagoya UniversityJP97 papers
- The University of OsakaJP96 papers
- Tokyo University of ScienceJP90 papers
- Japan Science and Technology AgencyJP68 papers
- UNSW SydneyAU63 papers
- Centre National de la Recherche ScientifiqueFR62 papers
10 papers · 2 filters
A non-equilibrium quantum many-body Rydberg atom engine
Federico Carollo, Filippo M. Gambetta, Kay Brandner +2
The standard approach to quantum engines is based on equilibrium systems and on thermodynamic transformations between Gibbs states. However, non-equilibrium quantum systems offer e…
Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems
Norifumi Matsumoto, Kohei Kawabata, Yuto Ashida +2
Contrary to the conventional wisdom in Hermitian systems, a continuous quantum phase transition between gapped phases is shown to occur without closing the energy gap in non-He…
Many-body scar state intrinsic to periodically driven system: Rigorous results
Sho Sugiura, Tomotaka Kuwahara, Keiji Saito
The violation of the Floquet version of eigenstate thermalization hypothesis is systematically discussed with realistic Hamiltonians. Our model is based on the PXP type interaction…
Vortex confinement transitions in the modified Goldstone model
Michikazu Kobayashi, Gergely Fejős, Chandrasekhar Chatterjee +1
The modified XY model is a variation of the XY model extended by a half periodic term, exhibiting a rich phase structure. As the Goldstone model, also known as the linear O(2) mode…
Thermodynamic Geometry of Microscopic Heat Engines
Kay Brandner, Keiji Saito
We develop a geometric framework to describe the thermodynamics of microscopic heat engines driven by slow periodic temperature variations and modulations of a mechanical control p…
Gaussian concentration bound and Ensemble equivalence in generic quantum many-body systems including long-range interaction
Tomotaka Kuwahara, Keiji Saito
This work explores fundamental statistical and thermodynamic properties of short-and long-range-interacting systems. The purpose of this study is twofold. Firstly, we rigorously pr…
Energy current correlation in solvable long-range interacting systems
Shuji Tamaki, Keiji Saito
We consider heat transfer in one-dimensional systems with long-range interactions. It is known that typical short-range interacting systems shows anomalous behavior in heat transpo…
Eigenstate thermalization from the clustering property of correlation
Tomotaka Kuwahara, Keiji Saito
The clustering property of an equilibrium bipartite correlation is one of the most general thermodynamic properties in non-critical many-body quantum systems. Herein, we consider t…
Information-theoretical bound of the irreversibility in thermal relaxation processes
Naoto Shiraishi, Keiji Saito
We establish that entropy production, which is crucial to the characterization of thermodynamic irreversibility, is obtained through a variational principle involving the Kulback-L…
Exact Results for First-Passage-Time Statistics in Biased Quenched Trap Models
Takuma Akimoto, Keiji Saito
We provide exact results for the mean and variance of first-passage times (FPTs) of making a directed revolution in the presence of a bias in heterogeneous quenched environments wh…