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18 papers · 2 filters
Correlations as a resource in quantum thermodynamics
Facundo Sapienza, Federico Cerisola, Augusto J. Roncaglia
The presence of correlations in physical systems can be a valuable resource for many quantum information tasks. They are also relevant in thermodynamic transformations, and their c…
Not quite free shortcuts to adiabaticity
Esteban Calzetta
Given the increasing use of shotcuts to adiabaticity (STA) to optimize power and efficiency of quantum heat engines, it becomes a relevant question if there are any theoretical lim…
Against Collapses, Purity and Separability Within the Definition of Quantum Entanglement
Christian de Ronde, César Massri
In this paper we we will argue against the orthodox definition of quantum entanglement which has been implicitly grounded on several widespread (metaphysical) presuppositions which…
Selective and Efficient Quantum Process Tomography in Arbitrary Finite Dimension
Ignacio Perito, Augusto Roncaglia, Ariel Bendersky
The characterization of quantum processes is a key tool in quantum information processing tasks for several reasons: on one hand, it allows to acknowledge errors in the implementat…
Reconciliation of quantum local master equations with thermodynamics
G. De Chiara, G. Landi, A. Hewgill +4
The study of open quantum systems often relies on approximate master equations derived under the assumptions of weak coupling to the environment. However when the system is made of…
Semiclassical theory of out-of-time-order correlators for low-dimensional classically chaotic systems
Rodolfo A. Jalabert, Ignacio García-Mata, Diego A. Wisniacki
The out-of-time-order correlator (OTOC), recently analyzed in several physical contexts, is studied for low-dimensional chaotic systems through semiclassical expansions and numeric…