33 citations · 141 across the 14 of their papers we have counts for
14 papers
Generalized Mathisson-Papapetrou-Tulczyjew-Dixon Equations
Takayoshi Ootsuka, Ryoko Yahagi
We derive two generalizations of Mathisson-Papapetrou-Tulczyjew-Dixon equations from Casalbuoni-Brink-Schwarz type pseudoclassical Lagrangians of Majorana spinors on a Riemann-Cart…
Two-level Quantum Walkers on Directed Graphs II: An Application to qRAM
Ryo Asaka, Kazumitsu Sakai, Ryoko Yahagi
This is the second paper in a series of two. Using a multi-particle continuous-time quantum walk with two internal states, which has been formulated in the first paper (arXiv:2112.…
Two-level Quantum Walkers on Directed Graphs I: Universal Quantum Computing
Ryo Asaka, Kazumitsu Sakai, Ryoko Yahagi
In the present paper, the first in a series of two, we propose a model of universal quantum computation using a fermionic/bosonic multi-particle continuous-time quantum walk with t…
Quantum random access memory via quantum walk
Ryo Asaka, Kazumitsu Sakai, Ryoko Yahagi
A novel concept of quantum random access memory (qRAM) employing a quantum walk is provided. Our qRAM relies on a bucket brigade scheme to access the memory cells. Introducing a bu…
Quantum circuit for the fast Fourier transform
Ryo Asaka, Kazumitsu Sakai, Ryoko Yahagi
We propose an implementation of the algorithm for the fast Fourier transform (FFT) as a quantum circuit consisting of a combination of some quantum gates. In our implementation, a…
Finsler connection in moving frame formalism
Takayoshi Ootsuka, Muneyuki Ishida, Ryoko Yahagi
In our previous work, we have defined a nonlinear connection of Finsler manifold which preserves the Finsler metric . To make the method easier and more useful in applic…
Super Finsler Connection of Superparticle on Two Dimensional Curved Spacetime
Takayoshi Ootsuka, Muneyuki Ishida, Erico Tanaka +1
We analyze the Casalbuoni-Brink-Schwarz superparticle model on a 2-dimensional curved spacetime as a super Finsler metric defined on a (2,2)-dimensional supermanifold. We propose a…
Cusp singularity in mean field Ising model
Yayoi Abe, Muneyuki Ishida, Erika Nozawa +2
An entropy of the Ising model in the mean field approximation is derived by the Hamilton-Jacobi formalism. We consider a grand canonical ensemble with respect to the temperature an…
Killing Symmetry on Finsler Manifold
Takayoshi Ootsuka, Ryoko Yahagi, Muneyuki Ishida
Killing vector fields are defined on Finsler manifold. The Killing symmetry is reformulated simply as by using the Killing non-linear 1-form and the spr…
Variational principle of relativistic perfect fluid
Takayoshi Ootsuka, Muneyuki Ishida, Erico Tanaka +1
We reformulate the relativistic perfect fluid system on curved space-time. Using standard variables, the velocity field ,energy density and pressure , the covariant Euler…
Crossover temperature of the spin-1/2 XXZ chain with an impurity
Ryoko Yahagi, Jun Sato, Tetsuo Deguchi
We study exactly the effect of an impurity in the interacting quantum spin chain at low temperature by solving the integrable spin-1/2 XXZ periodic chain with an impurity through t…
Application of Kawaguchi Lagrangian formulation to string theory
Ryoko Yahagi, Akio Sugamoto
String-scalar duality proposed by Y. Hosotani and membrane-scalar duality by A. Sugamoto are reexamined in the context of Kawaguchi Lagrangian formulation. The characteristic featu…
Finite-temperature behavior of an impurity in the spin-1/2 XXZ chain
Ryoko Yahagi, Jun Sato, Tetsuo Deguchi
We study the zero- and the finite-temperature behavior of the integrable spin-1/2 XXZ periodic chain with an impurity by the algebraic and thermal Bethe ansatz methods. We evaluate…
Energy-momentum conservation laws in Finsler/Kawaguchi Lagrangian formulation
Takayoshi Ootsuka, Ryoko Yahagi, Muneyuki Ishida +1
We reformulate the standard Lagrangian formalism to a reparameterisation invariant Lagrangian formalism by means of Finsler and Kawaguchi geometry. In our formalism, various types…