Fundamental aspects of steady-state conversion of heat to work at the nanoscale
In recent years, the study of heat to work conversion has been re-invigorated by
nanotechnology. Steady-state devices do this conversion without any macroscopic moving …
nanotechnology. Steady-state devices do this conversion without any macroscopic moving …
Energy dynamics, heat production and heat–work conversion with qubits: toward the development of quantum machines
L Arrachea - Reports on Progress in Physics, 2023 - iopscience.iop.org
We present an overview of recent advances in the study of energy dynamics and
mechanisms for energy conversion in qubit systems with special focus on realizations in …
mechanisms for energy conversion in qubit systems with special focus on realizations in …
Optimal cycles for low-dissipation heat engines
P Abiuso, M Perarnau-Llobet - Physical review letters, 2020 - APS
We consider the optimization of a finite-time Carnot engine characterized by small
dissipations. We bound the power with a simple inequality and show that the optimal …
dissipations. We bound the power with a simple inequality and show that the optimal …
Geometric optimisation of quantum thermodynamic processes
Differential geometry offers a powerful framework for optimising and characterising finite-
time thermodynamic processes, both classical and quantum. Here, we start by a …
time thermodynamic processes, both classical and quantum. Here, we start by a …
Thermodynamic length in open quantum systems
M Scandi, M Perarnau-Llobet - Quantum, 2019 - quantum-journal.org
The dissipation generated during a quasistatic thermodynamic process can be
characterised by introducing a metric on the space of Gibbs states, in such a way that …
characterised by introducing a metric on the space of Gibbs states, in such a way that …
Work fluctuations in slow processes: quantum signatures and optimal control
An important result in classical stochastic thermodynamics is the work fluctuation-dissipation
relation (FDR), which states that the dissipated work done along a slow process is …
relation (FDR), which states that the dissipated work done along a slow process is …
Pareto-optimal cycles for power, efficiency and fluctuations of quantum heat engines using reinforcement learning
The full optimization of a quantum heat engine requires operating at high power, high
efficiency, and high stability (ie, low power fluctuations). However, these three objectives …
efficiency, and high stability (ie, low power fluctuations). However, these three objectives …
Speed-ups to isothermality: Enhanced quantum thermal machines through control of the system-bath coupling
Isothermal transformations are minimally dissipative but slow processes, as the system
needs to remain close to thermal equilibrium along the protocol. Here, we show that …
needs to remain close to thermal equilibrium along the protocol. Here, we show that …
Quantum work statistics close to equilibrium
We study the statistics of work, dissipation, and entropy production of a quantum quasi-
isothermal process, where the system remains close to thermal equilibrium along the …
isothermal process, where the system remains close to thermal equilibrium along the …
Identifying optimal cycles in quantum thermal machines with reinforcement-learning
The optimal control of open quantum systems is a challenging task but has a key role in
improving existing quantum information processing technologies. We introduce a general …
improving existing quantum information processing technologies. We introduce a general …