4 papers · 1 filter
Efficient Quantum Algorithm for Solving Linear Distributed Delay Differential Equations
Wataru Setoyama, Keisuke Fujii
Non-Markovian dynamics is ubiquitous in both quantum and classical systems, but the numerical computation of the time-delay dynamics is demanding. In this work, we propose an effic…
Variational Quantum Operator Simulation
Satoru Shoji, Kosuke Ito, Yukihiro Shimizu +1
Implementing time-evolution operators in shallow quantum circuits is important for quantum simulations. The standard method of Trotterization requires a large number of gates to ac…
Probabilistic channel simulation using coherence
Benchi Zhao, Kosuke Ito, Keisuke Fujii
Channel simulation using coherence, which refers to realizing a target channel with coherent states and free operations, is a fundamental problem in the quantum resource theory of…
Variational quantum Hamiltonian engineering
Benchi Zhao, Keisuke Fujii
The Hamiltonian of a quantum system is represented in terms of operators corresponding to the kinetic and potential energies of the system. The expectation value of a Hamiltonian a…