Information scan of quantum states based on entropy-power uncertainty relations

Jizba, P, Hayes, A and Dunningham, J A (2019) Information scan of quantum states based on entropy-power uncertainty relations. Published in: Journal of Physics: Conference Series. 1275 (1) 012005. IOP Publishing ISSN 1742-6588

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Abstract

We use Renyi-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.

Item Type: Conference Proceedings
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Sussex Centre for Quantum Technologies
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics > QC0174.12 Quantum theory. Quantum mechanics
Depositing User: Jacob Dunningham
Date Deposited: 30 Sep 2019 14:28
Last Modified: 30 Sep 2019 15:02
URI: http://sro.sussex.ac.uk/id/eprint/86398

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Project NameSussex Project NumberFunderFunder Ref
UK Quantum Technology Hub: NQIT-Networked Quantum Information TechnologiesG1503EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/M013243/1