14 papers
Quantum enhancement of information-mediated energy transfer
Shotaro Oki, Yuki Kadono, Kaito Tojo +2
Thermodynamics of information identifies information flow as a thermodynamic resource, but whether quantum coherence and collective coupling can enhance it at low entropy-productio…
Optimal Work Extraction from Finite-Time Closed Quantum Dynamics
Shoki Sugimoto, Takahiro Sagawa, Ryusuke Hamazaki
Extracting useful work from quantum systems is a fundamental problem in quantum thermodynamics. In scenarios where rapid protocols are desired -- whether due to practical constrain…
Stochastic Thermodynamics on Time-Evolving Curved Spaces
Rihito Nagase, Shoki Sugimoto, Asuka Takatsu +1
We construct stochastic thermodynamics of overdamped Langevin systems on nonrelaticvistic curved spaces with time-dependent metrics. The time dependence of the metric contributes t…
Symmetry and Topology of Successive Quantum Feedback Control
Junxuan Wen, Zongping Gong, Takahiro Sagawa
We establish a symmetry classification for a general class of quantum feedback control. For successive feedback control with a non-adaptive sequence of bare measurements (i.e., wit…
Stochastic Thermodynamics for Autoregressive Generative Models: A Non-Markovian Perspective
Takahiro Sagawa
Autoregressive generative models -- including Transformers, recurrent neural networks, classical Kalman filters, state space models, and Mamba -- all generate sequences by sampling…
Thermodynamic uncertainty relation under continuous measurement and feedback with quantum-classical-transfer entropy
Kaito Tojo, Takahiro Sagawa, Ken Funo
We derive a thermodynamic uncertainty relation (TUR) under quantum continuous measurement and feedback control. By incorporating the quantum-classical-transfer entropy, which quant…