Quantum squeezing in a nonlinear mechanical oscillator
Stefano Marti,
Uwe von Lüpke,
Om Joshi
et al.
Abstract:Mechanical degrees of freedom are natural candidates for continuous-variable quantum information processing and bosonic quantum simulations. However, these applications require the engineering of squeezing and nonlinearities in the quantum regime. Here we demonstrate squeezing below the zero-point fluctuations of a gigahertz-frequency mechanical resonator coupled to a superconducting qubit. This is achieved by parametrically driving the qubit, which results in an effective two-phonon drive. In addition, we sho… Show more
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