Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives
Name
PhysRevApplied.7.034031.pdf
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683.55 KB
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Author(s)
Metelmann, A.
Kamal, Archana
Date Issued
March 2017
Journal
Physical Review Applied
Publisher
American Physical Society
Citation
Kamal, A., and A. Metelmann. “Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives.” Physical Review Applied 7.3 (2017): n. pag. © 2017 American Physical Society
Version
Final published version
Abstract
We present a generic system of three bosonic modes coupled parametrically with a time-varying coupling modulated by a combination of two pump harmonics, and we show how this system provides the minimal platform for realizing nonreciprocal couplings that can lead to gainless photon circulation, and phase-preserving or phase-sensitive directional amplification. Explicit frequency-dependent calculations within this minimal paradigm highlight the separation of amplification and directionality bandwidths, a feature generic to such schemes. We also study the influence of counterrotating interactions that can adversely affect directionality and the associated bandwidth; we find that these effects can be mitigated by suitably designing the properties of the auxiliary mode that plays the role of an engineered reservoir to the amplification mode space.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1103/PhysRevApplied.7.034031
