Publications

Published

1. Inferring nonequilibrium thermodynamics from tilted equilibrium using information-geometric Legendre transform
   Naruo Ohga, Sosuke Ito, Phys. Rev. Research 6, 013315 — arXiv:2112.11008
   
   We propose a method to infer thermodynamic quantities of nonstationary processes, which are often difficult to measure directly, from a measurement at equilibrium with external fields applied.

2. Thermodynamic bound on spectral perturbations, with applications to oscillations and relaxation dynamics
   Artemy Kolchinsky, Naruo Ohga, Sosuke Ito, Phys. Rev. Research 6, 013082 — arXiv:2304.01714
   
   We uncover a universal thermodynamic cost (entropy production rate) to realize nonequilibrium features of the eigenvalues of the rate matrix such as acceleration of relaxation and stochastic oscillations.

3. Thermodynamic Bound on the Asymmetry of Cross-Correlations
   Naruo Ohga, Sosuke Ito, Artemy Kolchinsky, Phys. Rev. Lett. 131, 077101 (2023) — arXiv:2303.13116
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   We find a universal and quantitative relation between the asymmetry of cross-correlations, a fundamental and often-used statistic, and the cycle affinity (the strength of thermodynamic driving).

4. Information-geometric structure for chemical thermodynamics: An explicit construction of dual affine coordinates
   Naruo Ohga, Sosuke Ito, Phys. Rev. E 106, 044131 (2022) — arXiv:2112.13813
   
   We construct an information-geometric structure behind chemical thermodynamics, which strengthens the analogy between chemical and stochastic thermodynamics.

Preprints

1. Microscopic theory of Mpemba effects and a no-Mpemba theorem for monotone many-body systems
   Naruo Ohga, Hisao Hayakawa, Sosuke Ito, arXiv:2410.06623
   
   We propose a universal microscopic understanding of Mpemba effects and develop a rigorous method for proving the absence of Mpemba effects based on the system’s microscopic descriptions.