Core quantum postulates including the superposition principle and the unitarity of evolutions
are natural and strikingly simple. I show that—when supplemented with a limited version of …

We establish bounds on quantum correlations in many-body systems. They reveal what sort
of information about a quantum system can be simultaneously recorded in different parts of …

We investigate the implications of quantum Darwinism in a composite quantum system with
interacting constituents exhibiting a decoherence-free subspace. We consider a two-qubit …

Quantum Darwinism (QD) proposes that classical objectivity emerges from the broadcast of
information about a microscopic degree of freedom into multiple fractions of a many-body …

Decoherence shows how the openness of quantum systems—interaction with their
environment—suppresses flagrant manifestations of quantumness. Einselection accounts …

Taking accurate measurements of the temperature of quantum systems is a challenging
task. The mathematical peculiarities of quantum information make it virtually impossible to …

Quantum Darwinism builds on decoherence theory to explain the emergence of classical
behavior in a fundamentally quantum universe. Within this framework we prove two crucial …

Quantum Darwinism explains the emergence of classical objectivity within a quantum
universe. However, to date, most research on quantum Darwinism has focused on specific …

We study the quantum fluctuation theorem in the one-time measurement (OTM) scheme,
where the work distribution of the backward process has been lacking and which is …

Understanding the emergence of objectivity from the quantum realm has been a long
standing issue strongly related to the quantum to classical crossover. Quantum Darwinism …