Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

CP Koch, U Boscain, T Calarco, G Dirr… - EPJ Quantum …, 2022 - epjqt.epj.org
Quantum optimal control, a toolbox for devising and implementing the shapes of external
fields that accomplish given tasks in the operation of a quantum device in the best way …

Nonequilibrium boundary-driven quantum systems: Models, methods, and properties

GT Landi, D Poletti, G Schaller - Reviews of Modern Physics, 2022 - APS
Recent years have seen tremendous progress in the theoretical understanding of quantum
systems driven dissipatively by coupling to different baths at their edges. This was possible …

Effective-Hamiltonian theory of open quantum systems at strong coupling

N Anto-Sztrikacs, A Nazir, D Segal - PRX Quantum, 2023 - APS
We present the reaction-coordinate polaron-transform (RCPT) framework for generating
effective-Hamiltonian models to treat nonequilibrium open quantum systems at strong …

Universal bounds on fluctuations in continuous thermal machines

S Saryal, M Gerry, I Khait, D Segal, BK Agarwalla - Physical Review Letters, 2021 - APS
We study bounds on ratios of fluctuations in steady-state time-reversal energy conversion
devices. In the linear response regime, we prove that the relative fluctuations (precision) of …

Non-Markovian thermal operations boosting the performance of quantum heat engines

K Ptaszyński - Physical Review E, 2022 - APS
It is investigated whether non-Markovianity, ie, the memory effects resulting from the
coupling of the system to its environment, can be beneficial for the performance of quantum …

Geometric thermodynamic uncertainty relation in a periodically driven thermoelectric heat engine

J Lu, Z Wang, J Peng, C Wang, JH Jiang, J Ren - Physical Review B, 2022 - APS
The thermodynamic uncertainty relation, quantifying a trade-off among average current, the
associated fluctuation (precision), and entropy production (cost), has been formulated at …

Strong system-bath coupling effects in quantum absorption refrigerators

F Ivander, N Anto-Sztrikacs, D Segal - Physical Review E, 2022 - APS
We study the performance of three-level quantum absorption refrigerators, paradigmatic
autonomous quantum thermal machines, and reveal central impacts of strong couplings …

Full counting statistics and coherences: Fluctuation symmetry in heat transport with the unified quantum master equation

M Gerry, D Segal - Physical Review E, 2023 - APS
Recently, a “unified” quantum master equation was derived and shown to be of the Gorini-
Kossakowski-Lindblad-Sudarshan form. This equation describes the dynamics of open …

Inelastic thermoelectric transport and fluctuations in mesoscopic systems

R Wang, C Wang, J Lu, JH Jiang - Advances in Physics: X, 2022 - Taylor & Francis
In the past decade, a new research frontier emerges at the interface between physics and
renewable energy, termed as inelastic thermoelectric effects, where inelastic transport …

[HTML][HTML] Quantum coherence-control of thermal energy transport: the V model as a case study

F Ivander, N Anto-Sztrikacs, D Segal - New Journal of Physics, 2022 - iopscience.iop.org
Whether genuine quantum effects, particularly quantum coherences, can offer an advantage
to quantum devices is a topic of much interest. Here, we study a minimal model, the three …