23–27 Jun 2025
Università degli Studi Federico II, Napoli
Europe/Rome timezone

Harvesting stabilizer entropy and non-locality from a quantum field

23 Jun 2025, 12:30
30m
Aula Ottagonale di Fisica (University of Naples "Federico II")

Aula Ottagonale di Fisica

University of Naples "Federico II"

Corso Umberto I, 40 - 80138 Napoli (NA)

Speaker

Stefano Cusumano (University of Naples)

Description

The harvesting of quantum resources from the vacuum state of a quantum field is a central topic in relativistic quantum information. While several proposals for the harvesting of entanglement from the quantum vacuum exist, less attention has been paid to other quantum resources, such as non-stabilizerness, commonly dubbed magic and quantified by the Stabilizer Rényi Entropy (SRE). In this work, we show how to harvest SRE from the vacuum state of a massless field, using accelerated Unruh-DeWitt detectors in Minkowski spacetime. In particular, one can harvest a particular non-local form of SRE that cannot be erased by local operations. We conclude our work with an analysis of the CHSH inequalities: one cannot extract a violation from the quantum field unless these resources are already there.

Primary author

Stefano Cusumano (University of Naples)

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