Kyoto Workshop on Quantum Thermodynamics and Stochastic Thermodynamics 2025

Session

Tuesday

9 Dec 2025, 09:30

Panasonic Auditorium, Yukawa Hall (Yukawa Institute for Theoretical Physics, Kyoto University)

17. Fundamental Precision Limits in Finite-Dimensional Quantum Thermal Machines

Yoshihiko Hasegawa (University of Tokyo)

09/12/2025, 09:30

Invited Talk

Enhancing the precision of a thermodynamic process inevitably comes with a thermodynamic cost. This idea was recently formalized as the thermodynamic uncertainty relation, which states that the lower bound on the relative variance of thermodynamic currents decreases as entropy production increases. From another perspective, this relation suggests that if entropy production could become...

18. Universal tradeoff relations between resource cost and irreversibility of channels: General-resource Wigner-Araki-Yanase theorems and beyond

Hiroyasu Tajima (Kyushu university)

09/12/2025, 10:20

Long Talk

Quantum technologies offer exceptional -- sometimes almost magical -- speed and performance, yet every quantum process costs physical resources. Designing next-generation quantum devices, therefore, depends on solving the following question: which resources, and in what amount, are required to implement a desired quantum process? Casting the problem in the language of quantum resource...

19. Quantum Schrödinger bridges: Large deviations and time-symmetric ensembles

Olga Movilla Miangolarra (University of La Laguna)

09/12/2025, 11:10

Short Talk

Quantum counterparts of Schrödinger's classical bridge problem have been around for the better part of half a century. During that time, several quantum approaches to this multifaceted classical problem have been introduced. In this presentation, we will show how to unify, extend, and interpret several such approaches through a classical large-deviations perspective. To this end, we consider...

20. Moving with minimum effort – Optimal work protocols for systems with memory and activity

Sarah Loos (Max Planck Instutute for Dynamics and Self-Organizatio)

09/12/2025, 13:30

Invited Talk

We discuss thermodynamically optimal driving protocols for systems with hidden degrees of freedom. As a paradigmatic case, we consider the finite-time transport of a particle in a harmonic trap through a medium with minimum average work input. For passive particles in viscous fluids, the optimal protocol features two symmetric jumps at the beginning and end of the trajectory [1]. We...

21. Thermodynamics based on optimal transport

Sosuke Ito (The University of Tokyo)

09/12/2025, 14:20

Long Talk

Over the last two decades, the relationship between optimal transport theory and stochastic thermodynamics in the context of classical diffusion systems has been widely discussed. It is well known, for example, that state evolution with minimal dissipation over a finite time period is described by optimal transport protocols. In optimal transport theory, a notable of the metric is the...