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Universal holonomic control of algebras of observables
Paolo Zanardi
Closed paths of observable algebras can enact logical gates. We show that algebras of fixed block structure have a unique unitarily invariant parallel transport, recovering Berry--…
Scrambling and operator entanglement in local non-Hermitian quantum systems
Brian Barch, Namit Anand, Jeffrey Marshall +2
The breakdown of Lieb-Robinson bounds in local, non-Hermitian quantum systems opens up the possibility for a rich landscape of quantum many-body phenomenology. We elucidate this by…
Coherence generation, symmetry algebras and Hilbert space fragmentation
Faidon Andreadakis, Paolo Zanardi
Hilbert space fragmentation is a novel type of ergodicity breaking in closed quantum systems. Recently, an algebraic approach was utilized to provide a definition of Hilbert space…
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…
Scrambling of Algebras in Open Quantum Systems
Faidon Andreadakis, Namit Anand, Paolo Zanardi
Many quantitative approaches to the dynamical scrambling of information in quantum systems involve the study of out-of-time-ordered correlators (OTOCs). In this paper, we introduce…
BROTOCs and Quantum Information Scrambling at Finite Temperature
Namit Anand, Paolo Zanardi
Out-of-time-ordered correlators (OTOCs) have been extensively studied in recent years as a diagnostic of quantum information scrambling. In this paper, we study quantum information…