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24 papers · 2 filters
The non-stabilizerness of fermionic Gaussian states
Mario Collura, Jacopo De Nardis, Vincenzo Alba +1
We introduce an efficient method to quantify nonstabilizerness in fermionic Gaussian states, overcoming the long-standing challenge posed by their extensive entanglement. Using a p…
Ultrafast pump-probe phase-randomized tomography
Filippo Glerean, Enrico Maria Rigoni, Giacomo Jarc +6
Measuring fluctuations in matter's low energy excitations is the key to unveil the nature of the nonequilibrium response of materials. A promising outlook in this respect is offere…
Superactivation of memory effects in a classical Markov environment
Fabio Benatti, Giovanni Nichele
We investigate a phenomenon known as Superactivation of Backflow of Information (SBFI); namely, the fact that the tensor product of a non-Markovian dynamics with itself exhibits Ba…
Estimates of loss function concentration in noisy parametrized quantum circuits
Giulio Crognaletti, Michele Grossi, Angelo Bassi
Variational quantum computing offers a powerful framework with applications across diverse fields such as quantum chemistry, machine learning, and optimization. However, its scalab…
Decoherence due to the Casimir effect?
Anirudh Gundhi
Open system dynamics of an electron is studied in the presence of radiation field, confined between two parallel conducting pates. It has been suggested in previous works that the…
Decoherence Cancellation through Noise Interference
Giuseppe D'Auria, Giovanna Morigi, Fabio Anselmi +1
We propose a novel, feedback-free method to cancel the effects of decoherence in the dynamics of open quantum systems subject to dephasing. The protocol makes use of the coupling w…