98 citations · 366 across the 17 of their papers we have counts for
17 papers
Effects of dissipation in reservoir computing using a spin qubit array
Shion Mifune, Taro Kanao, Tetsufumi Tanamoto
Reservoir computing (RC) is one of the hottest research topic as an application of many physical devices because the device characteristics can be used directly in computing sequen…
Fast elementary gates for universal quantum computation with Kerr parametric oscillator qubits
Taro Kanao, Hayato Goto
Kerr parametric oscillators (KPOs) can stabilize the superpositions of coherent states, which can be utilized as qubits, and are promising candidates for realizing hardware-efficie…
Measurement-free fault-tolerant logical zero-state encoding of the distance-three nine-qubit surface code in a one-dimensional qubit array
Hayato Goto, Yinghao Ho, Taro Kanao
Generation of logical zero states encoded with a quantum error-correcting code is the first step for fault-tolerant quantum computation, but requires considerably large resource ov…
Control of the coupling between Kerr-cat qubits via transmon couplers
Takaaki Aoki, Taro Kanao, Hayato Goto +2
Kerr-cat qubits are a promising candidate for fault-tolerant quantum computers owing to the biased nature of their errors. The coupling between the qubits can be utilized for…
Simulated bifurcation for higher-order cost functions
Taro Kanao, Hayato Goto
High-performance Ising machines for solving combinatorial optimization problems have been developed with digital processors implementing heuristic algorithms such as simulated bifu…
Two-qubit gate using conditional driving for highly detuned Kerr-nonlinear parametric oscillators
Hiroomi Chono, Taro Kanao, Hayato Goto
A Kerr-nonlinear parametric oscillator (KPO) is one of the promising devices to realize qubits for universal quantum computing. The KPO can stabilize two coherent states with oppos…
Simulated bifurcation assisted by thermal fluctuation
Taro Kanao, Hayato Goto
Various kinds of Ising machines based on unconventional computing have recently been developed for practically important combinatorial optimization. Among them, the machines implem…
Fast tunable coupling scheme of Kerr parametric oscillators based on shortcuts to adiabaticity
Shumpei Masuda, Taro Kanao, Hayato Goto +3
Kerr parametric oscillators (KPOs), which can be implemented with superconducting parametrons possessing large Kerr nonlinearity, have been attracting much attention in terms of th…
Chaos in coupled Kerr-nonlinear parametric oscillators
Hayato Goto, Taro Kanao
A Kerr-nonlinear parametric oscillator (KPO) can generate a quantum superposition of two oscillating states, known as a Schrödinger cat state, via quantum adiabatic evolution, and…
Quantum Gate for Kerr Nonlinear Parametric Oscillator Using Effective Excited States
Taro Kanao, Shumpei Masuda, Shiro Kawabata +1
A Kerr nonlinear parametric oscillator (KPO) can stabilize a quantum superposition of two coherent states with opposite phases, which can be used as a qubit. In a universal gate se…
Excited-State Adiabatic Quantum Computation Started with Vacuum States
Hayato Goto, Taro Kanao
Adiabatic quantum computation (AQC), which is particularly useful for combinatorial optimization, becomes more powerful by using excited states, instead of ground states. However,…
High-accuracy Ising machine using Kerr-nonlinear parametric oscillators with local four-body interactions
Taro Kanao, Hayato Goto
A two-dimensional array of Kerr-nonlinear parametric oscillators (KPOs) with local four-body interactions is a promising candidate for realizing an Ising machine with all-to-all sp…
Layer-selective detection of magnetization directions from two layers of antiferromagnetically-coupled magnetizations by ferromagnetic resonance using a spin-torque oscillator
Taro Kanao, Hirofumi Suto, Koichi Mizushima +1
We use micromagnetic simulation to demonstrate layer-selective detection of magnetization directions from magnetic dots having two recording layers by using a spin-torque oscillato…
Reservoir Computing on Spin-Torque Oscillator Array
Taro Kanao, Hirofumi Suto, Koichi Mizushima +3
We numerically study reservoir computing on a spin-torque oscillator (STO) array, describing the magnetization dynamics of the STO array by a nonlinear oscillator model. The STOs e…
Defect-Induced Kondo Effect in graphene: Role of Localized State of Electrons
Taro Kanao, Hiroyasu Matsuura, Masao Ogata
We discuss a role of the localized orbital, which exists around the defect, on the defect-induced Kondo effect in graphene by a numerical renormalization group study. We find t…
Theory of Defect-Induced Kondo Effect in Graphene: Effect of Zeeman Field
Taro Kanao, Hiroyasu Matsuura, Masao Ogata
The effect of the Zeeman field on the defect-induced Kondo effect in graphene is investigated. The effective model of the Kondo effect is derived, and is analyzed on the basis of t…
Theory of Defect-Induced Kondo Effect in Graphene: Numerical Renormalization Group Study
Taro Kanao, Hiroyasu Matsuura, Masao Ogata
An effective model that describes the Kondo effect due to a point defect in graphene is developed, taking account of the electronic state and the lattice structure of the defect. I…