17 papers
Quantum Resources in Disorder-Free Localization Dynamics of Gauge Theories
Devendra Singh Bhakuni, Giovanni Cataldi, Jad C. Halimeh +1
Quantum-state complexity diagnostics provide valuable insight into many-body dynamics, information scrambling, and quantum computation. Here, we investigate the real-time dynamics…
Complexity of Quantum Trajectories
Luca Lumia, Emanuele Tirrito, Mario Collura +2
Open quantum systems can be described by unraveling Lindblad master equations into ensembles of quantum trajectories. Here we investigate how the complexity of such trajectories is…
The true cost of factoring: Linking magic and number-theoretic complexity in Shor's algorithm
Alessio Paviglianiti, Matteo Seclì, Emanuele Tirrito +1
The execution cost of quantum algorithms is typically quantified through asymptotic gate counts and qubit register sizes, yet these metrics do not directly capture which genuinely…
Nonlocal nonstabilizerness in free fermion models
Mario Collura, Benjamin Béri, Emanuele Tirrito
Nonlocal magic quantifies the irreducible nonstabilizerness of a bipartite quantum state after optimizing over local basis changes. We study nonlocal magic for pure fermionic Gauss…
Coherence dynamics in quantum many-body systems with conservation laws
Sreemayee Aditya, Emanuele Tirrito, Piotr Sierant +1
We study how conservation laws shape the spreading of quantum coherence in many-body dynamics. Focusing on -symmetric random circuits, charge-and-dipole conserving circuits,…
Topological magic response in quantum spin chains
Ritu Nehra, Poetri Sonya Tarabunga, Martina Frau +3
Topological matter provides natural platforms for robust, non-local information storage, central to quantum error correction. Yet, while the relation between entanglement and topol…