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Symphony on Strong Field Approximation
Kasra Amini, Jens Biegert, Francesca Calegari +22
This paper has been prepared by the Symphony collaboration (University of Warsaw, Uniwersytet Jagielloński, DESY/CNR and ICFO) on the occasion of the 25th anniversary of the "simpl…
Bounds on the capacity and power of quantum batteries
Sergi Julia-Farre, Tymoteusz Salamon, Arnau Riera +2
Quantum batteries, composed of quantum cells, are expected to outperform their classical analogs. The origin of such advantages lies in the role of quantum correlations, which may…
Two-dimensional topological quantum walks in the momentum space of structured light
Alessio D'Errico, Filippo Cardano, Maria Maffei +7
Quantum walks are powerful tools for quantum applications and for designing topological systems. Although they are simulated in a variety of platforms, genuine two-dimensional real…
Decoherence of spin registers revisited
Jan Tuziemski, Aniello Lampo, Maciej Lewenstein +1
We revisit decoherence process of a qubit register interacting with a thermal bosonic bath. We generalize the previous studies by considering not only the register's behavior but a…
Conservation of torus-knot angular momentum in high-order harmonic generation
Emilio Pisanty, Laura Rego, Julio San Román +7
High-order harmonic generation stands as a unique nonlinear optical up-conversion process, mediated by a laser-driven electron recollision mechanism, which has been shown to conser…
Optimal decomposition of incoherent qubit channel
Swapan Rana, Maciej Lewenstein
We show that any incoherent qubit channel could be decomposed into four incoherent Kraus operators. The proof consists in showing existence of four incoherent Kraus operators by de…
Device-independent witnesses of entanglement depth from two-body correlators
Albert Aloy, Jordi Tura, Flavio Baccari +3
We consider the characterization of entanglement depth in a quantum many-body system from the device-independent perspective; i.e., certifying how many particles are genuinely enta…
Thermodynamics from information
Manabendra Nath Bera, Andreas Winter, Maciej Lewenstein
Thermodynamics and information have intricate inter-relations. The justification of the fact that information is physical, is done by inter-linking information and thermodynamics -…
Quantum chaos and entanglement in ergodic and non-ergodic systems
Angelo Piga, Maciej Lewenstein, James Q. Quach
We study entanglement entropy (EE) as a signature of quantum chaos in ergodic and non-ergodic systems. In particular we look at the quantum kicked top and kicked rotor as multi-qub…
Bell correlations depth in many-body systems
Flavio Baccari, Jordi Tura, Matteo Fadel +6
While the interest in multipartite nonlocality has grown in recent years, its existence in large quantum systems is difficult to confirm experimentally. This is mostly due to the i…
Semiclassical approach to finite temperature quantum annealing with trapped ions
David Raventós, Tobias Graß, Bruno Juliá-Díaz +1
Recently it has been demonstrated that an ensemble of trapped ions may serve as a quantum annealer for the number-partitioning problem [Nature Comm. DOI: 10.1038/ncomms11524]. This…