954 citations
- The University of TokyoJP59 papers
- Kyushu UniversityJP13 papers
- University of Electro-CommunicationsJP13 papers
- Centre National de la Recherche ScientifiqueFR12 papers
- Kyoto UniversityJP12 papers
- The University of OsakaJP11 papers
- Max Planck Institute for the Physics of Complex SystemsDE10 papers
- Gakushūin School CorporationJP9 papers
- University of TsukubaJP9 papers
- Tokyo Institute of TechnologyJP8 papers
- Ariel UniversityIL7 papers
- Keio UniversityJP7 papers
16 papers · 1 filter
Level statistics for one-dimensional Schrödinger operators and Gaussian beta ensemble
Fumihiko Nakano
We study the level statistics for two classes of 1-dimensional random Schrödinger operators : (1) for operators whose coupling constants decay as the system size becomes large, and…
Composite-kink solutions of coupled nonlinear wave equations
Hosho Katsura
We obtain exact traveling-wave solutions of the coupled nonlinear partial differential equations that describe the dynamics of two classical scalar fields in 1+1 dimensions. The so…
First-Quantized Theory of Expanding Universe from Field Quantization in Mini-Superspace
Daisuke Ida, Miyuki Saito
We propose an improved variant of the third-quantization scheme, for the spatially homogeneous and isotropic cosmological models in Einstein gravity coupled with a neutral massless…
On the existence of an energy gap in one-dimensional Lesanovsky's model
Hosho Katsura
We study the quantum lattice gas model in one dimension introduced by Lesanovsky, who showed that the exact ground state and a couple of excited states can be obtained analytically…
Phase diagram and pair Tomonaga-Luttinger liquid in a Bose-Hubbard model with flat bands
Shintaro Takayoshi, Hosho Katsura, Noriaki Watanabe +1
To explore superfluidity in flat-band systems, we consider a Bose-Hubbard model on a cross-linked ladder with flux, which has a flat band with a gap between the other band for…
Unified Jarzynski and Sagawa-Ueda relations for Maxwell's demon
Hal Tasaki
By using Newtonian mechanics, we construct a general model of Maxwell's demon, a system in which the engine and the memory interact only through the exchange of information. We sho…