[HTML][HTML] Kirkwood-Dirac quasiprobability approach to the statistics of incompatible observables

M Lostaglio, A Belenchia, A Levy… - Quantum, 2023 - quantum-journal.org
Recent work has revealed the central role played by the Kirkwood-Dirac quasiprobability
(KDQ) as a tool to properly account for non-classical features in the context of condensed …

Machine-learning recognition of light orbital-angular-momentum superpositions

BP da Silva, BAD Marques, RB Rodrigues… - Physical Review A, 2021 - APS
We develop a method to characterize arbitrary superpositions of light orbital angular
momentum (OAM) with high fidelity by using astigmatic transformation and machine-learning …

[PDF][PDF] Kirkwood-Dirac quasiprobability approach to quantum fluctuations: Theoretical and experimental perspectives

M Lostaglio, A Belenchia, A Levy… - arXiv preprint arXiv …, 2022 - researchgate.net
The existence of incompatible physical observables is one of the features that better casts
quantum physics apart from classical mechanics. In fact, incompatible observables are at the …

Autonomous dissipative Maxwell's demon in a diamond spin qutrit

S Hernández-Gómez, S Gherardini, N Staudenmaier… - PRX Quantum, 2022 - APS
Engineered dynamical maps combining coherent and dissipative transformations of
quantum states with quantum measurements have demonstrated a number of technological …

Experimental demonstration of a quantum engine driven by entanglement and local measurements

K Wang, R Xia, L Bresque, P Xue - Physical Review Research, 2022 - APS
Understanding entanglement and quantum measurements from a thermodynamics point of
view is a fundamental and challenging task. Recently, a two-qubit engine was put forward as …

Joint measurability in nonequilibrium quantum thermodynamics

K Beyer, R Uola, K Luoma, WT Strunz - Physical Review E, 2022 - APS
In this Letter we investigate the concept of quantum work and its measurability from the
viewpoint of quantum measurement theory. Very often, quantum work and fluctuation …

[HTML][HTML] Enhanced photonic Maxwell's demon with correlated baths

GL Zanin, M Antesberger, MJ Jacquet, PHS Ribeiro… - Quantum, 2022 - quantum-journal.org
Maxwell's Demon is at the heart of the interrelation between quantum information
processing and thermodynamics. In this thought experiment, a demon generates a …

[HTML][HTML] Experimental signature of initial quantum coherence on entropy production

S Hernández-Gómez, S Gherardini… - npj Quantum …, 2023 - nature.com
We report on the experimental quantification of the contribution to non-equilibrium entropy
production stemming from the quantum coherence content in the initial state of a qubit …

Propagation of perfect Laguerre–Gaussian entangled states in non-Kolmogorov atmospheric turbulence

X Yu, Z Yin, J Wang, Y Zhu, M Li, S Khakhomov… - Physica …, 2023 - iopscience.iop.org
We investigate the impacts of backward scattering (BS) of non-Kolmogorov turbulence on
the entangled perfect Laguerre–Gaussian (PLG) beams. The explicit expressions for PLG …

Quantum-memory-enhanced dissipative entanglement creation in nonequilibrium steady states

D Heineken, K Beyer, K Luoma, WT Strunz - Physical Review A, 2021 - APS
This article investigates dissipative preparation of entangled nonequilibrium steady states
(NESS). We construct a collision model where the open system consists of two qubits which …