76 citations · 460 across the 23 of their papers we have counts for
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Energy-Efficient Pseudo-Ratchet for Brownian Computers through One-Dimensional Quantum Brownian Motion
Sho Nakade, Ferdinand Peper, Kazuki Kanki +1
Brownian computers utilize thermal fluctuations as a resource for computation and hold promise for achieving ultra-low-energy computations. However, the lack of a statistical direc…
Anomalous diffusion in Davydov quantum molecular chain model
Sho Nakade, Kazuki Kanki, Satoshi Tanaka +1
We discuss anomalous relaxation processes in Davydov one-dimensional chain molecule that consists of an exciton and an acoustic phonon field as a thermal reservoir in the chain. We…
Microscopic Description of Quantum Lorentz Gas by Complex Spectral Representation of the Liouville-von Neumann Equation: A Limitation of the Boltzmann Approximation
Kazunari Hashimoto, Kazuki Kanki, Satoshi Tanaka +1
Irreversible processes of one-dimensional quantum perfect Lorentz gas is studied on the basis of the fundamental laws of physics in terms of the complex spectral analysis associate…
Non-divergent representation of non-Hermitian operator near the exceptional point with application to a quantum Lorentz gas
Kazunari Hashimoto, Kazuki Kanki, Hisao Hayakawa +1
We propose a non-singular representation for a non-Hermitian operator even if the parameter space contains exceptional points (EPs), at which the operator cannot be diagonalized an…
Band Structure and Accumulation Point in the Spectrum of Quantum Collision Operator in a One-Dimensional Molecular Chain
B. A. Tay, Kazuki Kanki, Satoshi Tanaka +1
We consider the eigenvalue problem of a kinetic collision operator for a quantum Brownian particle interacting with a one-dimensional chain. The quantum nature of the system gives…
Nonequilibrium Transport of Quantum Molecular Chain in terms of the Complex Liouvillian Spectrum
Satoshi Tanaka, Kazuki Kanki, Tomio Petrosky
Transport process in molecular chain in nonequilibrium stationary state is theoretically investigated. The molecule is interacting at its both ends with thermal baths which has dif…
Nontrivial eigenvalues of the Liouvillian of an open quantum system
Ruri Nakano, Naomichi Hatano, Tomio Petrosky
We present methods of finding complex eigenvalues of the Liouvillian of an open quantum system. The goal is to find eigenvalues that cannot be predicted from the eigenvalues of the…