Work

The Volume of Two-Qubit States by Information Geometry

Year: 2018

Type: article

Abstract: Using the information geometry approach, we determine the volume of the set of two-qubit states with maximally disordered subsystems. Particular attention is devoted to the behavior of the volume of sub-manifolds of separable and entangled states with fixed purity. We show that the usage of the classical Fisher metric on phase space probability representation of quantum states gives the same qualitative results with respect to different versions of the quantum Fisher metric.

Source: Entropy

DOI: 10.3390/e20020146

Authors: Milajiguli Rexiti, Domenico Felice, Stefano Mancini

Institutions: Università di Camerino, Max Planck Institute for Mathematics in the Sciences, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: China Scholarship Council