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7 papers · 1 filter
Demonstration of logical quantum phase estimation for X-ray absorption spectra
Hirofumi Nishi, Taichi Kosugi, Satoshi Hirose +2
In this study, we employed Fourier-based quantum phase estimation (QPE) to calculate X-ray absorption spectroscopy (XAS) spectra. The primary focus of this study is the calculation…
Subgradient Method using Quantum Annealing for Inequality-Constrained Binary Optimization Problems
Taisei Takabayashi, Takeru Goto, Masayuki Ohzeki
Quantum annealing is a generic solver for combinatorial optimization problems that utilizes quantum fluctuations. Recently, there has been extensive research applying quantum annea…
Inequality constraints in variational quantum circuits with qudits
Alberto Bottarelli, Sebastian Schmitt, Philipp Hauke
Quantum optimization is emerging as a prominent candidate for exploiting the capabilities of near-term quantum devices. Many application-relevant optimization tasks require the inc…
Variational Quantum Multi-Objective Optimization
Linus Ekstrom, Hao Wang, Sebastian Schmitt
Solving combinatorial optimization problems on near-term quantum devices has gained a lot of attraction in recent years. Currently, most works have focused on single-objective prob…
A Hybrid Quantum-Classical Approach to the Electric Mobility Problem
Margarita Veshchezerova, Mikhail Somov, David Bertsche +4
We suggest a hybrid quantum-classical routine for the NP-hard Electric Vehicle Fleet Charging and Allocation Problem. The original formulation is a Mixed Integer Linear Program wit…
Online calibration scheme for training restricted Boltzmann machines with quantum annealing
Takeru Goto, Masayuki Ohzeki
We propose a scheme to calibrate the internal parameters of a quantum annealer to obtain well-approximated samples for training a restricted Boltzmann machine (RBM). Empirically, s…