Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe
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 …
fields that accomplish given tasks in the operation of a quantum device in the best way …
Quantum thermal machines and batteries
The seminal work by Sadi Carnot in the early nineteenth century provided the blueprint of a
reversible heat engine and the celebrated second law of thermodynamics eventually …
reversible heat engine and the celebrated second law of thermodynamics eventually …
Quantum fluctuations hinder finite-time information erasure near the Landauer limit
Information is physical but information is also processed in finite time. Where computing
protocols are concerned, finite-time processing in the quantum regime can dynamically …
protocols are concerned, finite-time processing in the quantum regime can dynamically …
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 …
Optimal state manipulation for a two-qubit system driven by coherent and incoherent controls
OV Morzhin, AN Pechen - Quantum Information Processing, 2023 - Springer
Optimal control of two-qubit quantum systems attracts high interest due to applications
ranging from two-qubit gate generation to optimization of receiver for transferring coherence …
ranging from two-qubit gate generation to optimization of receiver for transferring coherence …
Many-body quantum heat engines with shortcuts to adiabaticity
Quantum heat engines are modeled by thermodynamic cycles with quantum-mechanical
working media. Since high engine efficiencies require adiabaticity, a major challenge is to …
working media. Since high engine efficiencies require adiabaticity, a major challenge is to …
Quantum finite-time thermodynamics: insight from a single qubit engine
Incorporating time into thermodynamics allows for addressing the tradeoff between
efficiency and power. A qubit engine serves as a toy model in order to study this tradeoff …
efficiency and power. A qubit engine serves as a toy model in order to study this tradeoff …
Control landscapes for high-fidelity generation of C-NOT and C-PHASE gates with coherent and environmental driving
AN Pechen, VN Petruhanov, OV Morzhin… - The European Physical …, 2024 - Springer
High-fidelity generation of two-qubit gates is important for quantum computation, since such
gates are components of popular universal sets of gates. Here, we consider the problem of …
gates are components of popular universal sets of gates. Here, we consider the problem of …
Unification of the first law of quantum thermodynamics
Underlying the classical thermodynamic principles are analogous microscopic laws, arising
from the fundamental axioms of quantum mechanics. These define quantum thermodynamic …
from the fundamental axioms of quantum mechanics. These define quantum thermodynamic …
Controlling the uncontrollable: Quantum control of open-system dynamics
Control of open quantum systems is essential for the realization of contemporary quantum
science and technology. We demonstrate such control using a thermodynamically consistent …
science and technology. We demonstrate such control using a thermodynamically consistent …