991 citations · 6.5k across the 84 of their papers we have counts for
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Work extractability from energy eigenstates under optimized local operations
Shotaro Z. Baba, Nobuyuki Yoshioka, Takahiro Sagawa
We examine the relationship between the second law of thermodynamics and the energy eigenstates of quantum many-body systems that undergo cyclic unitary evolution. Using a numerica…
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…
Deep reinforcement learning for preparation of thermal and prethermal quantum states
Shotaro Z. Baba, Nobuyuki Yoshioka, Yuto Ashida +1
We propose a method based on deep reinforcement learning that efficiently prepares a quantum many-body pure state in thermal or prethermal equilibrium. The main physical intuition…
Characterizing symmetry-protected thermal equilibrium by work extraction
Yosuke Mitsuhashi, Kazuya Kaneko, Takahiro Sagawa
The second law of thermodynamics states that work cannot be extracted from thermal equilibrium, whose quantum formulation is known as complete passivity; A state is called complete…
Quantum thermodynamics of correlated-catalytic state conversion at small-scale
Naoto Shiraishi, Takahiro Sagawa
The class of possible thermodynamic conversions can be extended by introducing an auxiliary system called catalyst, which assists state conversion while remaining its own state unc…
Entropy, Divergence, and Majorization in Classical and Quantum Thermodynamics
Takahiro Sagawa
In these decades, it has been revealed that there is rich information-theoretic structure in thermodynamics of out-of-equilibrium systems in both the classical and quantum regimes.…