303 citations · 4.6k across the 110 of their papers we have counts for
10 papers · 2 filters
Learning efficient decoders for quasi-chaotic quantum scramblers
Lorenzo Leone, Salvatore F. E. Oliviero, Seth Lloyd +1
Scrambling of quantum information is an important feature at the root of randomization and benchmarking protocols, the onset of quantum chaos, and black-hole physics. Unscrambling…
Unscrambling Quantum Information with Clifford decoders
Salvatore F. E. Oliviero, Lorenzo Leone, Seth Lloyd +1
Quantum information scrambling is a unitary process that destroys local correlations and spreads information throughout the system, effectively hiding it in nonlocal degrees of fre…
Entanglement complexity of the Rokhsar-Kivelson-sign wavefunctions
Stefano Piemontese, Tommaso Roscilde, Alioscia Hamma
In this paper we study the transitions of entanglement complexity in an exemplary family of states - the Rokhsar-Kivelson-sign wavefunctions - whose degree of entanglement is contr…
Complexity of frustration: a new source of non-local non-stabilizerness
J. Odavić, T. Haug, G. Torre +3
We advance the characterization of complexity in quantum many-body systems by examining -states embedded in a spin chain. Such states show an amount of non-stabilizerness or "ma…
Bounded light cone and robust topological order out of equilibrium
Yu Zeng, Alioscia Hamma, Yu-Ran Zhang +3
The ground state degeneracy of topologically ordered gapped Hamiltonians is the bedrock for self-correcting quantum memories, which are unfortunately not stable away from equilibri…
Retrieving information from a black hole using quantum machine learning
Lorenzo Leone, Salvatore F. E. Oliviero, Stefano Piemontese +2
In a seminal paper[JHEP09(2007)120], Hayden and Preskill showed that information can be retrieved from a black hole that is sufficiently scrambling, assuming that the retriever has…
Magic-state resource theory for the ground state of the transverse-field Ising model
Salvatore F. E. Oliviero, Lorenzo Leone, Alioscia Hamma
Ground states of quantum many-body systems are both entangled and possess a kind of quantum complexity as their preparation requires universal resources that go beyond the Clifford…
Nonstabilizerness determining the hardness of direct fidelity estimation
Lorenzo Leone, Salvatore F. E. Oliviero, Alioscia Hamma
In this work, we show how the resource theory of nonstabilizerness quantifies the hardness of direct fidelity estimation protocols. In particular, the resources needed for a direct…
Measuring magic on a quantum processor
Salvatore F. E. Oliviero, Lorenzo Leone, Alioscia Hamma +1
Magic states are the resource that allows quantum computers to attain an advantage over classical computers. This resource consists in the deviation from a property called stabiliz…
Transitions in Entanglement Complexity in Random Circuits
Sarah True, Alioscia Hamma
Entanglement is the defining characteristic of quantum mechanics. Bipartite entanglement is characterized by the von Neumann entropy. Entanglement is not just described by a number…