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Quantum-enhanced protocols with mixed states using cold atoms in dipole traps

Krzyzanowska, K; Copley-May, M; Romain, R; MacCormick, C and Bergamini, S (2017). Quantum-enhanced protocols with mixed states using cold atoms in dipole traps. Journal of Physics: Conference Series, 793(1), article no. 012015.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1088/1742-6596/793/1/012015
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Abstract

We discuss the use of cold atoms in dipole traps to demonstrate experimentally a particular class of protocols for computation and metrology based on mixed states. Modelling of the system shows that, for a specific class of problems (tracing, phase estimation), a quantum advantage can be achieved over classical algorithms for very realistic conditions and strong decoherence. We discuss the results of the models and the experimental implementation.

Item Type: Journal Item
Copyright Holders: 2017 IOP Publishing
ISSN: 1742-6588
Project Funding Details:
Funded Project NameProject IDFunding Body
Testing the computational power of discord (SP-12-065-SB)EP/K022938/1EPSRC (Engineering and Physical Sciences Research Council)
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 48792
Depositing User: Silvia Bergamini
Date Deposited: 28 Feb 2017 11:04
Last Modified: 08 Mar 2017 15:55
URI: http://oro.open.ac.uk/id/eprint/48792
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