2 papers
quant-ph2026
Redesigning the linear--quadratic--Gaussian cost function for feedback cooling of a quantum harmonic oscillator
Shuma Sugiura, Koki Shiraishi, Masahito Ueda
Linear--quadratic--Gaussian (LQG) control is optimal only with respect to a prescribed cost function, the choice of which dictates the physical objective of the control. We conside…
quant-ph2025
Quantum feedback cooling of a trapped nanoparticle by using a low-pass filter
Shuma Sugiura, Masahito Ueda
We propose a low-pass-filter (LPF) feedback control for cooling a trapped particle with a low-pass filter, which utilizes a shift of the potential caused by the feedback operation.…