Why us



Quantum algorithms are able to provide quantum speedup for several important problems in computer science and mathematics. We design and test new quantum algorithms, expanding the field of quantum computing.


We delve into the fundamentals of learning theory, and explore its applications to different interdisciplinary areas of science, including computer graphics and quantum computing.


Graphs are ubiquitous in nature, and we explore theoretical graph theory and its applications to different areas of science.


Explainable Natural Language Processing with Matrix Product States

Jirawat Tangpanitanon, Chanatip Mangkang, Pradeep Bhadola, Yuichiro Minato, Dimitris Angelakis, Thiparat Chotibut, December 2021

New Journal of Physics




Towards Accurate Description of Chemical Reaction Energetics by Using Variational Quantum Eigensolver: A Case Study of the C2v Quasi-Reaction Pathway of Beryllium Insertion to H2 Molecule

Kenji Sugisaki, Takumi Kato, Yuichiro Minato, Koji Okuwaki, Yuji Mochizuki, June 2021




Quantum computing formulation of some classical Hadamard matrix searching methods and its implementation on a quantum computer

Andriyan Suksmono, Yuichiro Minato, January 2022

Scientific Reports



Tight Query Complexity Bounds for Learning Graph Partitions

Xizhi Liu, Sayan Mukherjee, December 2021




Simulation of Continuous-Variable Quantum Systems with Tensor Network

Ryutaro Nagai, Takao Tomono, Yuichiro Minato, October 2021



Neural Sequence Transformation

Sabyasachi Mukherjee, Sayan Mukherjee, Binh-Son Hua, Nobuyuki Umetani, Daniel Meister, August 2021



A Grover Search-Based Algorithm for the List Coloring Problem

Sayan Mukherjee, August 2021



Reduction of Orbital Space for Molecular Orbital Calculations with Quantum Computation Simulator for Educations

Yuji Mochizuki, Koji Okuwaki, Takumi Kato, Yuichiro Minato, September 2019



Finding Hadamard Matrices by a Quantum Annealing Machine

Andriyan Bayu Suksmono, Yuichiro Minato, October 2019



Solving tiling puzzles with quantum annealing

Asa Eagle, Takumi Kato, Yuichiro Minato, April 2019