205 citations · 3.3k across the 120 of their papers we have counts for
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Efficiency of the general quantum-mechanical Carnot engine
Sumiyoshi Abe
A quantum-mechanical analog of the Carnot engine reversibly working at vanishing temperature, shortly termed the quantum-mechanical Carnot engine, is discussed. A general formula f…
Fokker-Planck Theory of Nonequilibrium Systems Governed by Hierarchical Dynamics
Sumiyoshi Abe
Dynamics of complex systems is often hierarchically organized on different time scales. To understand the physics of such hierarchy, here Brownian motion of a particle moving throu…
Thermodynamic processes generated by a class of completely positive quantum operations
Sumiyoshi Abe, Yuki Aoyaghi
An attempt toward the operational formulation of quantum thermodynamics is made by employing the recently proposed operations forming positive operator-valued measures for generati…
Role of the superposition principle for enhancing the efficiency of the quantum-mechanical Carnot engine
Sumiyoshi Abe, Shinji Okuyama
A role of the superposition principle is discussed for the quantum-mechanical Carnot engine introduced by Bender, Brody, and Meister [J. Phys. A 33, 4427 (2000)]. It is shown that…