Theory of phase-mixing amplification in an optomechanical system
Ockeloen-Korppi, C. F., Heikkilä, T., Sillanpää, M. A., & Massel, F. (2017). Theory of phase-mixing amplification in an optomechanical system. Quantum Science and Technology, 2(3), Article 035002. https://doi.org/10.1088/2058-9565/aa78e3
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© 2017 IOP Publishing Ltd. This is a final draft version of an article whose final and definitive form has been published by IOP. Published in this repository with the kind permission of the publisher.
The investigation of the ultimate limits imposed by quantum mechanics on amplification represents an important topic both on a fundamental level and from the perspective of potential applications. We discuss here a novel regime for bosonic linear amplifiers—beside phase-insensitive and phase-sensitive amplification—which we term here phase-mixing amplification. Furthermore, we show that phase-mixing amplification can be realised in a cavity optomechanical setup, constituted by a mechanical resonator which is dispersively coupled to an optomechanical cavity asymmetrically driven around both mechanical sidebands. While, in general, this amplifier is phase-mixing, for a suitable choice of parameters, the amplifier proposed here operates as a phase-sensitive amplifier. We show that both configurations allow amplification with an added noise below the quantum limit of (phase-insensitive) amplification in a parameter range compatible with current experiments in microwave circuit optomechanics. In particular, we show that introducing phase-mixing amplification typically allows for a significant reduction of the added noise.
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https://converis.jyu.fi/converis/portal/detail/Publication/27803407
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Research Council of FinlandFunding program(s)
Academy Research Fellow, AoF; Centre of Excellence, AoFAdditional information about funding
This work was supported by the Academy of Finland (Contract No. 275245, CoE Project No. 284594) and the Horizon 2020 programme (FETPROACT-2016, 732894-HOT) and by the European Research Council (No. 615755-CAVITYQPD).Related items
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