Pairwise tomography networks for many-body quantum systems

Pairwise tomography networks for many-body quantum systems

Blog Article

We introduce the concept of pairwise tomography networks to characterize quantum properties in many-body systems and demonstrate an efficient protocol to measure them experimentally.Pairwise tomography networks are generators of multiplex networks where each layer represents the graph of a relevant quantifier, such as, e.g.

, concurrence, quantum discord, purity, quantum mutual information, or classical Kratom Liquids correlations.We propose a measurement scheme to perform two-qubit tomography of all pairs showing exponential improvement in the number of qubits N with respect to previously AOP Sweatshirt existing methods.We illustrate the usefulness of our approach by means of several examples revealing its potential impact to quantum computation, communication, and simulation.

We perform a proof-of-principle experiment demonstrating pairwise tomography networks of W states on IBM Q devices.