Frustrating quantum batteries

AG Catalano, SM Giampaolo, O Morsch, V Giovannetti… - PRX Quantum, 2024 - APS
We propose to use a quantum spin chain as a device to store and release energy coherently
and we investigate the interplay between its internal correlations and outside decoherence …

Dynamical Magic Transitions in Monitored Clifford+ Circuits

M Bejan, C McLauchlan, B Béri - PRX Quantum, 2024 - APS
The classical simulation of highly entangling quantum dynamics is conjectured to be
generically hard. Thus, recently discovered measurement-induced transitions between …

Many-body magic via pauli-markov chains—from criticality to gauge theories

PS Tarabunga, E Tirrito, T Chanda, M Dalmonte - PRX Quantum, 2023 - APS
We introduce a method to measure many-body magic in quantum systems based on a
statistical exploration of Pauli strings via Markov chains. We demonstrate that sampling such …

Stabilizer entropy dynamics after a quantum quench

D Rattacaso, L Leone, SFE Oliviero, A Hamma - Physical Review A, 2023 - APS
Stabilizer entropies (SE) measure deviations from stabilizer resources and as such are a
fundamental ingredient for quantum advantage. In particular, the interplay of SE and …

Phase transition in stabilizer entropy and efficient purity estimation

L Leone, SFE Oliviero, G Esposito, A Hamma - Physical Review A, 2024 - APS
Stabilizer entropy (SE) quantifies the spread of a state in the basis of Pauli operators. It is a
computationally tractable measure of nonstabilizerness and thus a useful resource for …

Magic of quantum hypergraph states

J Chen, Y Yan, Y Zhou - Quantum, 2024 - quantum-journal.org
Magic, or nonstabilizerness, characterizes the deviation of a quantum state from the set of
stabilizer states, playing a fundamental role in quantum state complexity and universal fault …

Magic in generalized Rokhsar-Kivelson wavefunctions

PS Tarabunga, C Castelnovo - Quantum, 2024 - quantum-journal.org
Magic is a property of a quantum state that characterizes its deviation from a stabilizer state,
serving as a useful resource for achieving universal quantum computation eg, within …

Magic phase transition and non-local complexity in generalized State

AG Catalano, J Odavić, G Torre, A Hamma… - arxiv preprint arxiv …, 2024 - arxiv.org
We employ the Stabilizer Renyi Entropy (SRE) to characterize a quantum phase transition
that has so far eluded any standard description and can thus now be explained in terms of …

Stabilizer entropies and nonstabilizerness monotones

T Haug, L Piroli - Quantum, 2023 - quantum-journal.org
We study different aspects of the stabilizer entropies (SEs) and compare them against
known nonstabilizerness monotones such as the min-relative entropy and the robustness of …

Long-range entanglement and topological excitations

G Torre, J Odavić, P Fromholz, SM Giampaolo… - SciPost Physics …, 2024 - scipost.org
Topological order comes in different forms, and its classification and detection is an
important field of modern research. In this work, we show that the Disconnected …