6 papers
An Exact Link between Nonlocal Nonstabilizerness and Operator Entanglement
Faidon Andreadakis, Paolo Zanardi
Nonstabilizerness is a quantum property of states associated with the non-Clifford resources required for their preparation. As a resource, nonstabilizerness complements entangleme…
A Butterfly Effect in Encoding-Decoding Quantum Circuits
Emanuel Dallas, Faidon Andreadakis, Paolo Zanardi
The study of information scrambling has profoundly deepened our understanding of many-body quantum systems. Much recent research has been devote to understanding the interplay betw…
Mereological Quantum Phase Transitions
Paolo Zanardi, Emanuel Dallas, Faidon Andreadakis
We introduce the novel concept of mereological quantum phase transition (m-QPTs). Our framework is based on a variational family of operator algebras defining generalized tensor pr…
Tensor Product Structure Geometry under Unitary Channels
Faidon Andreadakis, Paolo Zanardi
In quantum many-body systems, complex dynamics delocalize the physical degrees of freedom. This spreading of information throughout the system has been extensively studied in relat…
Operator Space Entangling Power of Quantum Dynamics and Local Operator Entanglement Growth in Dual-Unitary Circuits
Faidon Andreadakis, Emanuel Dallas, Paolo Zanardi
Operator entanglement is a well-established measure of operator complexity across a system bipartition. In this work, we introduce a measure for the ability of a unitary channel to…
Operational Quantum Mereology and Minimal Scrambling
Paolo Zanardi, Emanuel Dallas, Faidon Andreadakis +1
In this paper we will attempt to answer the following question: what are the natural quantum subsystems which emerge out of a system's dynamical laws? To answer this question we fi…