Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Paolo Zanardi"'
Publikováno v:
Quantum, Vol 8, p 1406 (2024)
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 first define generalized tensor product structures (gTPS) in terms of ob
Externí odkaz:
https://doaj.org/article/2c7b8f82abea4c5e95702e28947df0cc
Autor:
Namit Anand, Paolo Zanardi
Publikováno v:
Quantum, Vol 6, p 744 (2022)
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-theoretic aspects of the $regularized$ finite-temperature OTOC. We in
Externí odkaz:
https://doaj.org/article/88a1b01666b14e4eb2eda4e877aea59e
Autor:
Paolo Zanardi
Publikováno v:
Quantum, Vol 6, p 666 (2022)
In this paper we describe an algebraic/geometrical approach to quantum scrambling. Generalized quantum subsystems are described by an hermitian-closed unital subalgebra $\cal A$ of operators evolving through a unitary channel. Qualitatively, quantum
Externí odkaz:
https://doaj.org/article/3a094fe3056344b5a431f2e3cd22c7e9
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023214 (2021)
We establish a rigorous connection between quantum coherence and quantum chaos by employing coherence measures originating from the resource theory framework as a diagnostic tool for quantum chaos. We quantify this connection at two different levels:
Externí odkaz:
https://doaj.org/article/c7a8f4228ee44361bbf5793d094280a3
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Persistent homology allows identification of topological features in data sets, allowing the efficient extraction of useful information. Here, the authors propose a quantum machine learning algorithm that provides an exponential speed up over known a
Externí odkaz:
https://doaj.org/article/70f1e67b437a4e34a6db16ebd4c0eb3d
Autor:
Georgios Styliaris, Paolo Zanardi
Publikováno v:
Quantum, Vol 4, p 261 (2020)
What can one infer about the dynamical evolution of quantum systems just by symmetry considerations? For Markovian dynamics in finite dimensions, we present a simple construction that assigns to each symmetry of the generator a family of scalar funct
Externí odkaz:
https://doaj.org/article/607417a4cf1e405c9e7c93711e0e93ea
Publikováno v:
New Journal of Physics, Vol 17, Iss 12, p 129501 (2015)
Externí odkaz:
https://doaj.org/article/5777ea43100e475fa5d86b222f6f5166
Publikováno v:
New Journal of Physics, Vol 14, Iss 12, p 123016 (2012)
We develop from first principles Markovian master equations suited for studying the time evolution of a system evolving adiabatically while coupled weakly to a thermal bath. We derive two sets of equations in the adiabatic limit, one using the rotati
Externí odkaz:
https://doaj.org/article/d9e07bf7853940a5abd9f090226b5888
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 an algebraic OTOC ($\mathcal{A}$-OTOC) that allows us to study inform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc47383bf5379f5df52f3526f3a04845
Publikováno v:
Physics Letters A
Coherence is a fundamental notion in quantum mechanics, defined relative to a reference basis. As such, it does not necessarily reveal the locality of interactions nor takes into account the accessible operations in a composite quantum system. In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea896f654ef66a2207e740b3164fcdc9
http://hdl.handle.net/11588/893090
http://hdl.handle.net/11588/893090