3 papers
quant-ph2026
Scaling law of asymptotic freedom in collective charging of quantum batteries
Gentaro Watanabe, Chunlin Chen, B. Prasanna Venkatesh
We establish a universal scaling law for collective charging of quantum batteries, independent of microscopic details. We prove that the ergotropy-to-energy ratio approaches unity…
cond-mat.stat-mech2026
Unified geometric formalism for dissipation and its fluctuations in finite-time microscopic heat engines
Gentaro Watanabe, Guo-Hua Xu, Yuki Minami
Microscopic heat engines operate in regimes where thermodynamic quantities fluctuate strongly, making stochastic effects an essential aspect of their performance. However, existing…
quant-ph2025
Asymptotic freedom in the dephased charging of quantum batteries
Chayan Purkait, B. Prasanna Venkatesh, Gentaro Watanabe
Quantum batteries, small-scale energy storage devices based on quantum systems, offer the potential for enhanced charging performance through quantum effects such as coherence and…