Information scan of quantum states based on entropy-power uncertainty relations. (September 2019)

• Record Type: Journal Article
• Authors: Jizba, P; Hayes, A; Dunningham, JA
• Is Part Of: Journal of physics. Volume 1275(2019)
• Publication Date: 2019-09
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1275/1/012005
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We use Rényi-entropy-power-based uncertainty relations to show how the information probability distribution associated with a quantum state can be reconstructed in a process that is analogous to quantum-state tomography. We illustrate our point with the so-called "cat states", which are of both fundamental interest and practical use in schemes such as quantum metrology, but are not well described by standard variance-based approaches.