46 citations · 97 across the 7 of their papers we have counts for
7 papers
Entanglement dynamics and performance of two-qubit gates for superconducting qubits under non-Markovian effects
Kiyoto Nakamura, Joachim Ankerhold
Within a numerically exact simulation technique, the dissipative dynamics of a two-qubit architecture is considered in which each qubit couples to its individual noise source (rese…
Impact of time-retarded noise on dynamical decoupling schemes for qubits
Kiyoto Nakamura, Joachim Ankerhold
One of the simplest and least resource-intensive methods to suppress decoherence for qubit operations, namely, dynamical decoupling (DD), is investigated for a broad range of reali…
Gate Operations for Superconducting Qubits and Non-Markovianity
Kiyoto Nakamura, Joachim Ankerhold
While the accuracy of qubit operations has been greatly improved in the last decade, further development is demanded to achieve the ultimate goal: a fault-tolerant quantum computer…
Qubit Dynamics beyond Lindblad: Non-Markovianity versus Rotating Wave Approximation
Kiyoto Nakamura, Joachim Ankerhold
With increasing performance of actual qubit devices, even subtle effects in the interaction between qubits and environmental degrees of freedom become progressively relevant and ex…
Open quantum dynamics theory for a complex subenvironment system with a quantum thermostat: Application to a spin heat bath
Kiyoto Nakamura, Yoshitaka Tanimura
Complex environments, such as molecular matrices and biological material, play a fundamental role in many important dynamic processes in condensed phases. Because it is extremely d…
Optical response of laser-driven charge-transfer complex described by Holstein-Hubbard model coupled to heat baths: Hierarchical equations of motion approach
Kiyoto Nakamura, Yoshitaka Tanimura
We investigate the optical response of a charge-transfer complex in a condensed phase driven by an external laser field. Our model includes an instantaneous short-range Coulomb int…
Hierarchical Schrödinger Equations of Motion for Open Quantum Dynamics
Kiyoto Nakamura, Yoshitaka Tanimura
We rigorously investigate the quantum non-Markovian dissipative dynamics of a system coupled to a harmonic oscillator bath by deriving hierarchical Schrodinger equations of motion…