125 citations · 420 across the 31 of their papers we have counts for
31 papers
Topological adiabatic dynamics in classical mass-spring chains with clamps
Atushi Tanaka
The path dependence of adiabatic evolution in classical harmonic chains with clamps is examined. It is shown that cutting and joining a chain may braid adiabatic normal mode freque…
Generating nonequilibrium stationary state from ground state condensate through an almost-adiabatic cycle
Atushi Tanaka, Takaaki Nakamura, Taksu Cheon
It is shown that the ground state of weakly interacting Bose particles in a quasi one-dimensional box trap can be converted into an excited stationary state by an adiabatic cyclic…
Complete population inversion of Bose particles by an adiabatic cycle
Atushi Tanaka, Taksu Cheon
We show that an adiabatic cycle excites Bose particles confined in a one-dimensional box. During the adiabatic cycle, a wall described by a -shaped potential is applied and its…
Path topology dependence of adiabatic time evolution
Atushi Tanaka, Taksu Cheon
An adiabatic time evolution of a closed quantum system connects eigenspaces of initial and final Hermitian Hamiltonians for slowly driven systems, or, unitary Floquet operators for…
Adiabatic excitation of a confined particle in one dimension with a variable infinitely sharp wall
Sho Kasumie, Manabu Miyamoto, Atushi Tanaka
It is shown that adiabatic cycles excite a quantum particle, which is confined in a one-dimensional region and is initially in an eigenstate. During the cycle, an infinitely sharp…
A topological formulation for exotic quantum holonomy
Atushi Tanaka, Taksu Cheon
An adiabatic change of parameters along a closed path may interchange the (quasi-)eigenenergies and eigenspaces of a closed quantum system. Such discrepancies induced by adiabatic…