2 papers
cond-mat.stat-mech2024
Thermodynamically Optimal Information Gain in Finite Time Measurement
Rihito Nagase, Takahiro Sagawa
The tradeoff relation between speed and cost is a central issue in designing fast and efficient information processing devices. We derive an achievable bound on thermodynamic cost…
quant-ph2024
Universal cost bound of quantum error mitigation based on quantum estimation theory
Kento Tsubouchi, Takahiro Sagawa, Nobuyuki Yoshioka
We present a unified approach to analyzing the cost of various quantum error mitigation methods on the basis of quantum estimation theory. By analyzing the quantum Fisher informati…