134 citations · 285 across the 22 of their papers we have counts for
11 papers · 1 filter
Can Constrained Quantum Annealing Be Effective in Noisy Quantum Annealers?
Ryoya Igata, Myonsok I, Yuya Seki +2
We investigate the performance of penalty-based quantum annealing (PQA) and constrained quantum annealing (CQA) in solving the graph partitioning problem under various noise models…
Quantum annealing with symmetric subspaces
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki
Quantum annealing (QA) is a promising approach for not only solving combinatorial optimization problems but also simulating quantum many-body systems such as those in condensed mat…
Preparing ground states of the XXZ model using the quantum annealing with inductively coupled superconducting flux qubits
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki
Preparing ground states of Hamiltonians is important in the condensed matter physics and the quantum chemistry. The interaction Hamiltonians typically contain not only diagonal but…
Quantum annealing with twisted fields
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki and +1
Quantum annealing is a promising method for solving combinational optimization problems and performing quantum chemical calculations. The main sources of errors in quantum annealin…
Improving the accuracy of the energy estimation by combining quantum annealing with classical computation
Takashi Imoto, Yuya Seki, Yuichiro Matsuzaki +1
Quantum chemistry calculations are important applications of quantum annealing. For practical applications in quantum chemistry, it is essential to estimate a ground state energy o…
Quantum remote sensing under the effect of dephasing
Hideaki Okane, Hideaki Hakoshima, Yuki Takeuchi +2
The quantum remote sensing (QRS) is a scheme to add security about the measurement results of a qubit-based sensor. A client delegates a measurement task to a remote server that ha…
Direct estimation of the energy gap between the ground state and excited state with quantum annealing
Yuichiro Matsuzaki, Hideaki Hakoshima, Kenji Sugisaki +2
Quantum chemistry is one of the important applications of quantum information technology. Especially, an estimation of the energy gap between a ground state and excited state of a…
Boltzmann machine learning with a variational quantum algorithm
Yuta Shingu, Yuya Seki, Shohei Watabe +5
Boltzmann machine is a powerful tool for modeling probability distributions that govern the training data. A thermal equilibrium state is typically used for Boltzmann machine learn…
Excited state search using quantum annealing
Yuya Seki, Yuichiro Matsuzaki, Shiro Kawabata
Quantum annealing (QA) is one of the ways to search the ground state of the problem Hamiltonian. Here, we propose the QA scheme to search arbitrary excited states of the problem Ha…
Quantum annealing with capacitive-shunted flux qubits
Yuichiro Matsuzaki, Hideaki Hakoshima, Yuya Seki +1
Quantum annealing (QA) provides us with a way to solve combinatorial optimization problems. In the previous demonstration of the QA, a superconducting flux qubit (FQ) was used. How…
Quantum annealing with antiferromagnetic fluctuations
Yuya Seki, Hidetoshi Nishimori
We introduce antiferromagnetic quantum fluctuations into quantum annealing in addition to the conventional transverse-field term. We apply this method to the infinite-range ferroma…