Quantifying nonstabilizerness through entanglement spectrum flatness
Emanuele Tirrito, Poetri Sonya Tarabunga, Gugliemo Lami, Titas Chanda, Lorenzo Leone, Salvatore F. E. Oliviero, Marcello Dalmonte, Mario Collura, Alioscia Hamma
Abstract
The authors establish a connection between nonstabilizerness and a readily measurable property -- the entanglement spectrum. This connection not only provides a deeper understanding of quantum complexity but also offers a practical way to probe nonstabilizerness even in noisy environments.
Topics & Concepts
Quantum entanglementFlatness (cosmology)Spectrum (functional analysis)Statistical physicsPhysicsQuantum mechanicsCosmologyQuantumQuantum many-body systemsQuantum Computing Algorithms and ArchitectureAlgebraic structures and combinatorial models