Quantum sensors assisted by spontaneous symmetry breaking for detecting very small forces

Ivanov, Peter A, Singer, Kilian, Vitanov, Nikolay V and Porras, Diego (2015) Quantum sensors assisted by spontaneous symmetry breaking for detecting very small forces. Physical Review Applied, 4 (5). ISSN 2331-7019

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Abstract

We propose a quantum-sensing scheme for measuring weak forces based on a symmetry-breaking adiabatic transition in the quantum Rabi model. We show that the system described by the Rabi Hamiltonian can serve as a sensor for extremely weak forces with sensitivity beyond the yoctonewton (yN) per sqrt (Hz) range. We propose an implementation of this sensing protocol using a single trapped ion. A major advantage of our scheme is that the force detection is performed by projective measurement of the population of the spin states at the end of the transition, instead of the far slower phonon number measurement used hitherto.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 01 Jun 2016 15:08
Last Modified: 06 Mar 2017 08:35
URI: http://sro.sussex.ac.uk/id/eprint/61263

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Project NameSussex Project NumberFunderFunder Ref
Integrated Quantum Information TechnologyG0650EUROPEAN UNIONGA 270843
New Frontiers in Quantum Simulation: NewFQSG1309EUROPEAN UNIONPCIG14-GA-2013-630955