Year: 2019
Type: article
Abstract: We present a technique for recovering the spectrum of a non-Markovian bosonic bath and/or non-Markovian noises coupled to a harmonic oscillator. The treatment is valid under the conditions that the environment is large and hot compared to the oscillator, and that its temporal autocorrelation functions are symmetric with respect to time translation and reflection-criteria which we consider fairly minimal. We model a demonstration of the technique as deployed in the experimental scenario of a nanosphere levitated in a Paul trap, and show that it would effectively probe the spectrum of an electric field noise source from 10^{2} to 10^{6} Hz with a resolution inversely proportional to the measurement time. This technique may be deployed in quantum sensing, metrology, computing, and in experimental probes of foundational questions.
Source: Physical Review Letters
Authors: Daniel Goldwater, P. F. Barker, Angelo Bassi, Sandro Donadi
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: Fondazione Angelo Della Riccia, European Cooperation in Science and Technology, Stiftelsen Blanceflor Boncompagni Ludovisi, född Bildt, Center for Integrated Quantum Science and Technology, Instituto Nazionale di Fisica Nucleare, H2020 European Research Council, Frankfurt Institute for Advanced Studies
Award: G4294710660
OpenAlex ID: W2913359075