47 citations · 135 across the 17 of their papers we have counts for
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quant-ph2007★ 9 cited
Relation between fundamental estimation limit and stability in linear quantum systems with imperfect measurement
Naoki Yamamoto, Shinji Hara
From the noncommutative nature of quantum mechanics, estimation of canonical observables and is essentially restricted in its performance by the Heisenberg unce…
quant-ph2006★ 47 cited
Suboptimal quantum-error-correcting procedure based on semidefinite programming
Naoki Yamamoto, Shinji Hara, Koji Tsumura
In this paper, we consider a simplified error-correcting problem: for a fixed encoding process, to find a cascade connected quantum channel such that the worst fidelity between the…