Marco Cianciaruso
Accessible quantification of multiparticle entanglement
Cianciaruso, Marco; Bromley, Thomas R.; Adesso, Gerardo
Authors
Thomas R. Bromley
Professor GERARDO ADESSO gerardo.adesso@nottingham.ac.uk
Professor of Mathematical Physics
Abstract
Entanglement is a key ingredient for quantum technologies and a fundamental signature of quantumness in a broad range of phenomena encompassing many-body physics, thermodynamics, cosmology and life sciences. For arbitrary multiparticle systems, entanglement quantification typically involves nontrivial optimisation problems, and it may require demanding tomographical techniques. Here, we develop an experimentally feasible approach to the evaluation of geometric measures of multiparticle entanglement. Our framework provides analytical results for particular classes of mixed states of N qubits, and computable lower bounds to global, partial, or genuine multiparticle entanglement of any general state. For global and partial entanglement, useful bounds are obtained with minimum effort, requiring local measurements in just three settings for any N. For genuine entanglement, a number of measurements scaling linearly with N are required. We demonstrate the power of our approach to estimate and quantify different types of multiparticle entanglement in a variety of N-qubit states useful for uantum information processing and recently engineered in laboratories with quantum optics and trapped ion setups.
Citation
Cianciaruso, M., Bromley, T. R., & Adesso, G. (2016). Accessible quantification of multiparticle entanglement. npj Quantum Information, 2(1), Article 16030. https://doi.org/10.1038/npjqi.2016.30
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 28, 2016 |
Online Publication Date | Oct 18, 2016 |
Publication Date | Oct 18, 2016 |
Deposit Date | Feb 24, 2017 |
Publicly Available Date | Feb 24, 2017 |
Journal | npj Quantum Information |
Electronic ISSN | 2056-6387 |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 2 |
Issue | 1 |
Article Number | 16030 |
DOI | https://doi.org/10.1038/npjqi.2016.30 |
Keywords | Quantum Physics; Statistical Mechanics; High Energy Physics - Theory; Mathematical Physics; Optics |
Public URL | https://nottingham-repository.worktribe.com/output/822904 |
Publisher URL | http://dx.doi.org/10.1038/npjqi.2016.30 |
Related Public URLs | https://arxiv.org/abs/1507.01600 |
Contract Date | Feb 24, 2017 |
Files
16NPJ_2_1630.pdf
(1.2 Mb)
PDF
Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
You might also like
Every quantum helps: Operational advantage of quantum resources beyond convexity
(2024)
Journal Article
A Post-Quantum Associative Memory
(2023)
Journal Article
Fundamental limitations to key distillation from Gaussian states with Gaussian operations
(2023)
Journal Article
Towards the ultimate brain: Exploring scientific discovery with ChatGPT AI
(2023)
Journal Article
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search