6 papers · 1 filter
Simulating finite-time quantum isothermal processes with generic superconducting quantum circuit
Jin-Fu Chen, Ying Li, Hui Dong
The finite-time isothermal process is fundamental in quantum thermodynamics yet complicated with combination of changing control parameters and the interaction with the thermal bat…
Directional quantum random walk induced by coherence
Jin-Fu Chen, Yu-Han Ma, Chang-Pu Sun
Quantum walk (QW), which is considered as the quantum counterpart of the classical random walk (CRW), is actually the quantum extension of CRW from the single-coin interpretation.…
Boosting the performance of the Quantum Otto heat engines
Jin-Fu Chen, Chang-Pu Sun, Hui Dong
To optimize the performance of a heat engine in finite-time cycle, it is important to understand the finite-time effect of thermodynamic processes. Previously, we have shown that e…
Achieve Higher Efficiency at Maximum Power with Finite-time Quantum Otto Cycle
Jin-Fu Chen, Chang-Pu Sun, Hui Dong
The optimization of finite-time thermodynamic heat engines was intensively explored recently, yet limited to few cycles, e.g. finite-time Carnot-like cycle. In this paper, we suppl…
The Bose-Fermi duality in quantum Otto heat engine with trapped repulsive Bosons
Jinfu Chen, Hui Dong, Chang-Pu Sun
Quantum heat engine with ideal gas has been well studied, yet the role of interaction was seldom explored. We construct a quantum Otto heat engine with N repulsive Bosonic particle…
Photon echo using imperfect X-ray pulse with phase fluctuation
Jinfu Chen, Hui Dong, Chang-Pu Sun
We study the impact of inter-pulse phase fluctuation in free-electron X-ray laser on the signal in the photon echo spectroscopy, which is one of the simplest non-linear spectroscop…