3 papers
quant-ph2025
A quantum algorithm for estimating the determinant
Vittorio Giovannetti, Seth Lloyd, Lorenzo Maccone
We present a quantum algorithm for estimating the matrix determinant based on quantum spectral sampling. The algorithm estimates the logarithm of the determinant of an …
quant-ph2025
Quantum optical classifier with superexponential speedup
Simone Roncallo, Angela Rosy Morgillo, Chiara Macchiavello +2
Classification is a central task in deep learning algorithms. Usually, images are first captured and then processed by a sequence of operations, of which the artificial neuron repr…
quant-ph2025
Mutual Information Bounded by Fisher Information
Wojciech Górecki, Xi Lu, Chiara Macchiavello +1
We derive a general upper bound to mutual information in terms of the Fisher information. The bound may be further used to derive a lower bound for the Bayesian quadratic cost. The…