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Lookup NU author(s): Dr Obinna AbahORCiD
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We propose two measurement-based schemes to cool a nonlinear mechanical resonator down to energies close to that of its ground state. The protocols rely on projective measurements of a spin degree of freedom, which interacts with the resonator through a Jaynes-Cummings interaction. We show the performance of these cooling schemes, that can be either concatenated—i.e., built by repeating a sequence of dynamical evolutions followed by projective measurements—or single-shot. We characterize the performance of both cooling schemes with numerical simulations and pinpoint the effects of decoherence and noise mechanisms. Due to the ubiquity and experimental relevance of the Jaynes-Cummings model, we argue that our results can be applied in a variety of experimental setups.
Author(s): Puebla R, Abah O, Paternostro M
Publication type: Article
Publication status: Published
Journal: Physical Review B
Print publication date: 15/06/2020
Online publication date: 08/06/2020
Acceptance date: 08/06/2020
ISSN (print): 2469-9950
ISSN (electronic): 2469-9969
Publisher: American Physical Society
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