6 citations · 6 across the 2 of their papers we have counts for
3 papers
quant-ph2026
Multi-parameter estimation enhanced by level crossing Hamiltonian structure with Bayesian feedback
Ryo Tatsumi, Le Bin Ho, Hiroaki Matsueda
Level crossings, where two quantum energy levels intersect, are ubiquitous in quantum systems and play a central role in controlling quantum dynamics. In this study, we establish a…
cond-mat.mes-hall2026
Current-control of chaos and effects of thermal fluctuations in magnetic tunnel junctions
Ryo Tatsumi, Shinji Miwa, Hiroaki Matsueda +1
We theoretically investigate the chaotic behavior of spin-torque ferromagnetic resonance in magnetic tunnel junctions (MTJs) with perpendicular magnetic anisotropy under thermal fl…
cond-mat.mes-hall2025★ 6 cited
Chaotic magnetization dynamics in magnetic Duffing oscillator
Ryo Tatsumi, Takahiro Chiba, Takashi Komine +1
We propose a magnetic analogy of the Duffing oscillator--magnetic Duffing oscillator--which is characterized by a double-well magnetic potential of a ferromagnet with a uniaxial ma…