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- University of PaduaIT221 papers
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322 papers · 1 filter
Single-qubit remote manipulation by magnetic solitons
Alessandro Cuccoli, Davide Nuzzi, Ruggero Vaia +1
Magnetic solitons can constitute a means for manipulating qubits from a distance. This would overcome the necessity of directly applying selective magnetic fields, which is unfeasi…
Sequences of lower bounds for entropic uncertainty relations from bistochastic maps
Paolo Giorda
Given two orthornormal bases A and B, the basic form of the entropic uncertainty principle is stated in terms of the sum of the Shannon entropies of the probabilities of measuring…
Symmetric Logarithmic Derivative of Fermionic Gaussian States
Angelo Carollo, Bernardo Spagnolo, Davide Valenti
In this article we derive a closed form expression for the symmetric logarithmic derivative of Fermionic Gaussian states. This provides a direct way of computing the quantum Fisher…
Discrete time crystal in a finite chain of Rydberg atoms without disorder
Chuhui Fan, D. Rossini, Han-Xiao Zhang +3
We study the collective dynamics of a clean Floquet system of cold atoms, numerically simulating two realistic set-ups based on a regular chain of interacting Rydberg atoms driven…
Stretching potential engineering
Stefano Cusumano, Antonella De Pasquale, Giuseppe Carlo La Rocca +1
As the possibility to decouple temporal and spatial variations of the electromagnetic field, leading to a wavelength stretching, has been recognized to be of paramount importance f…
State independent uncertainty relations from eigenvalue minimization
Paolo Giorda, Lorenzo Maccone, Alberto Riccardi
We consider uncertainty relations that give lower bounds to the sum of variances. Finding such lower bounds is typically complicated, and efficient procedures are known only for a…