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- Centre National de la Recherche ScientifiqueFR208 papers
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12 papers · 2 filters
Post-firewall paradoxes
Samuel L. Braunstein, Stefano Pirandola
The preeminent view that evaporating black holes should simply be smaller black holes has been challenged by the firewall paradox. In particular, this paradox suggests that somethi…
Quantum Illumination at the Microwave Wavelengths
Shabir Barzanjeh, Saikat Guha, Christian Weedbrook +3
Quantum illumination is a quantum-optical sensing technique in which an entangled source is exploited to improve the detection of a low-reflectivity object that is immersed in a br…
Zermelo Navigation in the Quantum Brachistochrone
Benjamin Russell, Susan Stepney
We analyse the optimal times for implementing unitary quantum gates in a constrained finite dimensional controlled quantum system. The family of constraints studied is that the per…
The logic of the future in quantum theory
Anthony Sudbery
According to quantum mechanics, statements about the future made by sentient beings like us are, in general, neither true nor false; they must satisfy a many-valued logic. I propos…
Direct tests of measurement uncertainty relations: what it takes
Paul Busch, Neil Stevens
The uncertainty principle being a cornerstone of quantum mechanics, it is surprising that in nearly 90 years there have been no direct tests of measurement uncertainty relations. T…
Asymmetric quantum hypothesis testing with Gaussian states
Gaetana Spedalieri, Samuel L. Braunstein
We consider the asymmetric formulation of quantum hypothesis testing, where two quantum hypotheses have different associated costs. In this problem, the aim is to minimize the prob…