874 citations · 1.6k across the 16 of their papers we have counts for
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Entropic partial orderings of quantum measurements
Adam Teixidó-Bonfill, Joseph Schindler, Dominik Šafránek
We investigate four partial orderings on the space of quantum measurements (i.e on POVMs or positive operator valued measures), describing four notions of coarse/fine-ness of measu…
Observational entropy with general quantum priors
Ge Bai, Dominik Šafránek, Joseph Schindler +2
Observational entropy captures both the intrinsic uncertainty of a thermodynamic state and the lack of knowledge due to coarse-graining. We demonstrate two interpretations of obser…
First Principles Numerical Demonstration of Emergent Decoherent Histories
Philipp Strasberg, Teresa E. Reinhard, Joseph Schindler
Within the histories formalism the decoherence functional is a formal tool to investigate the emergence of classicality in isolated quantum systems, yet an explicit evaluation of i…
Continuity bounds on observational entropy and measured relative entropies
Joseph Schindler, Andreas Winter
We derive a measurement-independent asymptotic continuity bound on the observational entropy for general POVM measurements, making essential use of its property of bounded concavit…
Observational entropy, coarse quantum states, and Petz recovery: information-theoretic properties and bounds
Francesco Buscemi, Joseph Schindler, Dominik Šafránek
Observational entropy provides a general notion of quantum entropy that appropriately interpolates between Boltzmann's and Gibbs' entropies, and has recently been argued to provide…
Basics of observational entropy
Joseph Schindler
These notes provide a brief primer on the basic aspects of "observational entropy" (also known as "quantum coarse-grained entropy"), a general framework for applying the concept of…
A brief introduction to observational entropy
Dominik Šafránek, Anthony Aguirre, Joseph Schindler +1
In the past several years, observational entropy has been developed as both a (time-dependent) quantum generalization of Boltzmann entropy, and as a rather general framework to enc…
Quantum correlation entropy
Joseph Schindler, Dominik Šafránek, Anthony Aguirre
We study quantum coarse-grained entropy and demonstrate that the gap in entropy between local and global coarse-grainings is a natural generalization of entanglement entropy to mix…