Heisenberg scaling with classical long-range correlations

Fernández Lorenzo, Samuel, Dunningham, Jacob A and Porras, Diego (2017) Heisenberg scaling with classical long-range correlations. Physical Review A. ISSN 2469-9926 (Accepted)

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The Heisenberg scaling is typically associated with nonclassicality and entanglement. In this work, however, we discuss how classical long-range correlations between lattice sites in many-body systems may lead to a 1=N scaling in precision with the number of probes in the context of quantum optical dissipative systems. In particular, we show that networks of coupled single qubit lasers can be mapped onto a classical XY model, and a Heisenberg scaling with the number of sites appears when estimating the amplitude and phase of a weak periodic driving field.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 15 Feb 2018 15:31
Last Modified: 21 Feb 2018 16:45
URI: http://sro.sussex.ac.uk/id/eprint/73609

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Project NameSussex Project NumberFunderFunder Ref
New Frontiers in Quantum Simulation: NewFQSG1309EUROPEAN UNIONPCIG14-GA-2013-630955