137 citations · 436 across the 15 of their papers we have counts for
15 papers
Universal quantum computation using quantum annealing with the transverse-field Ising Hamiltonian
Takashi Imoto, Yuki Susa, Ryoji Miyazaki +1
Quantum computation is a promising emerging technology, and by utilizing the principles of quantum mechanics, it is expected to achieve faster computations than classical computers…
Demonstration of the excited-state search on the D-wave quantum annealer
Takashi Imoto, Yuki Susa, Ryoji Miyazaki +2
Quantum annealing is a way to prepare an eigenstate of the problem Hamiltonian. Starting from an eigenstate of a trivial Hamiltonian, we slowly change the Hamiltonian to the proble…
Quantifying the Energy Relaxation Rate of Quantum States Using D-Wave Device and the Discovery of Long-Lived Multiqubit States
Takashi Imoto, Yuki Susa, Ryoji Miyazaki +1
Quantum annealing has been demonstrated with superconducting qubits. Such a quantum annealer has been used to solve combinatorial optimization problems. Moreover, it serves as a qu…
Nonstoquastic catalyst for bifurcation-based quantum annealing of ferromagnetic -spin model
Yuki Susa, Takashi Imoto, Yuichiro Matsuzaki
Introducing a nonstoquastic catalyst is a promising avenue to improve quantum annealing with the transverse field. In the present paper, we propose a nonstoquastic catalyst for bif…
Generation of multipartite entanglement between spin-1 particles with bifurcation-based quantum annealing
Yuichiro Matsuzaki, Takashi Imoto, Yuki Susa
Quantum annealing is a way to solve a combinational optimization problem where quantum fluctuation is induced by transverse fields. Recently, a bifurcation-based quantum annealing…
Variational optimization of the quantum annealing schedule for the Lechner-Hauke-Zoller scheme
Yuki Susa, Hidetoshi Nishimori
The annealing schedule is optimized for a parameter in the Lechner-Hauke-Zoller (LHZ) scheme for quantum annealing designed for the all-to-all-interacting Ising model representing…
Probing the Universality of Topological Defect Formation in a Quantum Annealer: Kibble-Zurek Mechanism and Beyond
Yuki Bando, Yuki Susa, Hiroki Oshiyama +7
The number of topological defects created in a system driven through a quantum phase transition exhibits a power-law scaling with the driving time. This universal scaling law is th…
Performance enhancement of quantum annealing under the Lechner-Hauke-Zoller scheme by non-linear driving of the constraint term
Yuki Susa, Hidetoshi Nishimori
We analyze the performance of quantum annealing as formulated by Lechner, Hauke, and Zoller (LHZ), by which a Hamiltonian with all-to-all two-body interactions is reduced to a corr…
Quantum annealing of the -spin model under inhomogeneous transverse field driving
Yuki Susa, Yu Yamashiro, Masayuki Yamamoto +3
We solve the mean-field-like -spin Ising model under a spatio-temporal inhomogeneous transverse field to study the effects of inhomogeneity on the performance of quantum anneali…
Exponential Speedup of Quantum Annealing by Inhomogeneous Driving of the Transverse Field
Yuki Susa, Yu Yamashiro, Masayuki Yamamoto +1
We show, for quantum annealing, that a certain type of inhomogeneous driving of the transverse field erases first-order quantum phase transitions in the p-body interacting mean-fie…
Relation between quantum fluctuations and the performance enhancement of quantum annealing in a nonstoquastic Hamiltonian
Yuki Susa, Johann F. Jadebeck, Hidetoshi Nishimori
We study the relation between quantum fluctuations and the significant enhancement of the performance of quantum annealing in a mean-field Hamiltonian. First-order quantum phase tr…
Physical description of statistical hypothesis testing for a weak-value amplification experiment using a birefringent crystal
Yuki Susa
We investigate the weak measurement experiment demonstrated by Ritchie et al. [N. W. M. Ritchie, J. G. Story, and R. G. Hulet, Phys. Rev. Lett. 66, 1107 (1991)] from the viewpoint…
Statistical hypothesis testing by weak-value amplification: Proposal and evaluation
Yuki Susa, Saki Tanaka
We study the detection capability of the weak-value amplification on the basis of the statistical hypothesis testing. We propose a reasonable testing method in the physical and sta…
Reply to "Comment on `Optimal probe wave function of weak-value amplification' "
Yuki Susa, Yutaka Shikano, Akio Hosoya
It is pointed out that the "counter example" presented in the Comment is a family of probe wave functions which are increasingly broad as the shift becomes large. Furthermore, the…
Optimal Probe Wavefunction of Weak-Value Amplification
Yuki Susa, Yutaka Shikano, Akio Hosoya
The weak measurement proposed by Aharonov and his colleagues extracts information of a physical quantity of the system by the post selection as the shifts of the argument of the pr…