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Using Quantum Mechanics to Cope with Liars
Stefano Mancini, Lorenzo Maccone
We propose the use of a quantum algorithm to deal with the problem of searching with errors in the framework of two-person games. Specifically, we present a solution to the Ulam's…
Deformation in the large of some complex manifolds, II
Fabrizio Catanese, Paola Frediani
The compact complex manifolds considered in this article are principal torus bundles over a torus. We consider the Kodaira Spencer map of the complete Appell Humbert family (introd…
Pseudospheres in geometry and physics: from Beltrami to De Sitter and beyond
B. Bertotti, R. Catenacci, C. Dappiaggi
We review the extraordinary fertility and proliferation in mathematics and physics of the concept of a surface with constant and negative Gaussian curvature. In his outstanding 186…
Inverting quantum decoherence by classical feedback from the environment
Francesco Buscemi, Giulio Chiribella, Giacomo Mauro D'Ariano
We show that for qubits and qutrits it is always possible to perfectly recover quantum coherence by performing a measurement only on the environment, whereas for dimension d>3 ther…
Quantum entanglement enhances the capacity of bosonic channels with memory
Nicolas J. Cerf, Julien Clavareau, Chiara Macchiavello +1
The bosonic quantum channels have recently attracted a growing interest, motivated by the hope that they open a tractable approach to the generally hard problem of evaluating quant…