4 papers
Spatial-Order Hierarchy of Time-Dependent Exchange-Correlation Potential
Naoki Negishi
Exact time-dependent density-functional theory separates the exchange-correlation potential into interaction and kinetic-correlation components, but the structural relation between…
Beyond Commutativity: Redesigning Trotter Decomposition via Local Symmetry
Naoki Negishi, Bo Yang
The product formula, commonly known as Trotter decomposition, is a central tool for digital quantum simulation, whose performance depends critically on how the Hamiltonian is parti…
Quantum simulation of many-body dynamics with noise-robust Trotter decomposition based on symmetric structures
Bo Yang, Naoki Negishi
The Suzuki-Trotter decomposition, which digitalizes quantum time evolution, provides a promising framework for simulating quantum dynamics on quantum hardware and exploring quantum…
Theory of Frequency Fluctuation of Intramolecular Vibration in Solution Phase: Application to C--N Stretching Mode of Organic Compounds
Naoki Negishi, Daisuke Yokogawa
We formulate frequency fluctuations of intramolecular vibrations of a solute by exploring the fluctuation of the electrostatic potential by solvents. We present a numerical methodo…