Quantum-limited amplification without instability
- URL: http://arxiv.org/abs/2208.00024v1
- Date: Fri, 29 Jul 2022 18:12:58 GMT
- Title: Quantum-limited amplification without instability
- Authors: A. Metelmann, O. Lanes, T-Z. Chien, A. McDonald, M. Hatridge, A. A.
Clerk
- Abstract summary: We consider an alternate general strategy where quantum-limited, large-gain amplification is achieved without any proximity to a dynamical instability.
We focus on a particular realization that allows us to realize an ideal single-mode squeezing operation in transmission.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum parametric amplifiers typically generate by operating in proximity to
a point of dynamical instability. We consider an alternate general strategy
where quantum-limited, large-gain amplification is achieved without any
proximity to a dynamical instability. Our basic mechanism (involving dynamics
that conserves the number of squeezed photons) enables the design of a variety
of one and two mode amplifiers that are not limited by any fundamental
gain-bandwidth constraint. We focus on a particular realization that allows us
to realize an ideal single-mode squeezing operation in transmission, and which
has zero reflection. We present both a thorough theoretical analysis of this
system (including pump-depletion effects), and also discuss results of an
experimental superconducting quantum circuit implementation.
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