activity
20022023
most citedThe oscillation effects on thermalization of the neutrinos in the universe with low reheating temperature

199 citations · 1.7k across the 46 of their papers we have counts for

collaborators

46 papers

quant-ph2023★ 6 cited

Demonstrating Quantum Computation for Quasiparticle Band Structures

Takahiro Ohgoe, Hokuto Iwakiri, Masaya Kohda +4

Understanding and predicting the properties of solid-state materials from first-principles has been a great challenge for decades. Owing to the recent advances in quantum technolog…

cond-mat.mtrl-sci2023★ 5 cited

Accelerating Optimal Elemental Configuration Search in Crystal using Ising Machine

Kazuhide Ichikawa, Satoru Ohuchi, Koki Ueno +1

This research demonstrates that Ising machines can effectively solve optimal elemental configuration searches in crystals, with Au-Cu alloys serving as an example. The energy funct…

cond-mat.mtrl-sci2021★ 4 cited

Robust and efficient calculation of activation energy by automated path search and density functional theory

Koki Ueno, Kazuhide Ichikawa, Kosei Sato +3

Because inorganic solid electrolytes are one of the key components for application to all-solid-state batteries, high-ionic-conductivity materials must be developed. Therefore, we…

quant-ph2021★ 4 cited

Deep variational quantum eigensolver for excited states and its application to quantum chemistry calculation of periodic materials

Kaoru Mizuta, Mikiya Fujii, Shigeki Fujii +4

A programmable quantum device that has a large number of qubits without fault-tolerance has emerged recently. Variational Quantum Eigensolver (VQE) is one of the most promising way…

physics.chem-ph2016★ 9 cited

Theoretical Study of Lithium Ionic Conductors by Electronic Stress Tensor Density and Electronic Kinetic Energy Density

Hiroo Nozaki, Yosuke Fujii, Kazuhide Ichikawa +3

We analyze the electronic structure of lithium ionic conductors, and , using the electronic stress tensor density and kinetic energy density with s…

physics.atom-ph2016★ 3 cited

Computational Method for the Retarded Potential in the Real-Time Simulation of Quantum Electrodynamics

Masahiro Fukuda, Kento Naito, Kazuhide Ichikawa +1

We discuss the method to compute the integrals which appear in the retarded potential term for a real-time simulation based on QED (Quantum Electrodynamics). We show that the oscil…