5 papers
Observational entropy of quantum correlations and entanglement
Leonardo Rossetti, Stefano Mancini, Andreas Winter +1
The use of coarse graining to connect physical and information theoretic entropies has recently been given a precise formulation in terms of ``observational entropy'', describing e…
Deviations from Geodesic Evolutions and Energy Waste on the Bloch Sphere
Leonardo Rossetti, Carlo Cafaro, Paul M. Alsing
In optimal quantum-mechanical evolutions, motion can occur along non-predetermined paths of shortest length in an optimal time. Alternatively, optimal evolutions can happen along p…
Curvature of Quantum Evolutions for Qubits in Time-Dependent Magnetic Fields
Carlo Cafaro, Leonardo Rossetti, Paul M. Alsing
In the geometry of quantum-mechanical processes, the time-varying curvature coefficient of a quantum evolution is specified by the magnitude squared of the covariant derivative of…
Complexity of Quantum-Mechanical Evolutions from Probability Amplitudes
Carlo Cafaro, Leonardo Rossetti, Paul M. Alsing
We study the complexity of both time-optimal and time sub-optimal quantum Hamiltonian evolutions connecting arbitrary source and a target states on the Bloch sphere equipped with t…
An Observer-Based View of Euclidean Geometry
Newshaw Bahreyni, Carlo Cafaro, Leonardo Rossetti
Influence network of events is a view of the universe based on events that may be related to one another via influence. The network of events form a partially-ordered set which, wh…