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9 papers · 2 filters
Coherence in quantum estimation
Paolo Giorda, Michele Allegra
The geometry of quantum states provides a unifying framework for estimation processes based on quantum probes, and it allows to derive the ultimate bounds of the achievable precisi…
Resonance interaction energy between two accelerated identical atoms in a coaccelerated frame and the Unruh effect
Wenting Zhou, Roberto Passante, Lucia Rizzuto
We investigate the resonance interaction energy between two uniformly accelerated identical atoms, interacting with the scalar field or the electromagnetic field in the vacuum stat…
Creation and characterization of He-related color centers in diamond
Jacopo Forneris, Andrea Tengattini, Sviatoslav Ditalia Tchernij +11
Diamond is a promising material for the development of emerging applications in quantum optics, quantum information and quantum sensing. The fabrication and characterization of nov…
Dynamical Casimir-Polder force between an excited atom and a conducting wall
Federico Armata, Ruggero Vasile, Pablo Barcellona +3
We consider the dynamical atom-surface Casimir-Polder force in the non-equilibrium configuration of an atom near a perfectly conducting wall, initially prepared in an excited state…
Two-qubit correlations revisited: average mutual information, relevant (and useful) observables and an application to remote state preparation
Paolo Giorda, Michele Allegra
Understanding how correlations can be used for quantum communication protocols is a central goal of quantum information science. While many authors have linked global measures of c…
Quantum backflow effect and nonclassicality
Francesco Albarelli, Tommaso Guaita, Matteo G. A. Paris
The quantum backflow effect is a counterintuitive behavior of the probability current of a free particle, which may be negative even for states with vanishing negative momentum com…