Stefano Mancini

activity

20242026

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quant-ph2026

Non-Multiplicativity of the Holevo Barycenter of Quantum Channels

Sayantan Chakraborty, Stefano Mancini, Leonardo Rossetti +1

The Holevo barycenter of a quantum channel is the unique output state obtained as the average output of any ensemble achieving the Holevo capacity. Given two quantum channels, the…

math-ph2026

The Haar measure of the $p$ -adic rotation group $SO (3)_{p}$ via nautical angles

Lorenzo Guglielmi, Stefano Mancini, Vincenzo Parisi +1

We study the explicit construction of the Haar measure on the compact $p$ -adic rotation group $SO (3)_{p}$ by nautical (Cardano) parametrization. Exploiting its topological g…

quant-ph2026

Composing $p$ -adic qubits: from representations of SO(3) $_{p}$ to entanglement and universal quantum logic gates

Ilaria Svampa, Sonia L'Innocente, Stefano Mancini +1

In the context of $p$ -adic quantum mechanics, we investigate composite systems of $p$ -adic qubits and $p$ -adically controlled quantum logic gates. We build on the notion of a singl…

Non-Multiplicativity of the Holevo Barycenter of Quantum Channels

The Haar measure of the p-adic rotation group SO(3)p​ via nautical angles

Composing p-adic qubits: from representations of SO(3)p​ to entanglement and universal quantum logic gates

The Haar measure of the $p$ -adic rotation group $SO (3)_{p}$ via nautical angles

Composing $p$ -adic qubits: from representations of SO(3) $_{p}$ to entanglement and universal quantum logic gates