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Identification and Mitigation of Conducting Package Losses for Quantum Superconducting Devices
Yizhou Huang, Yi-Hsiang Huang, Haozhi Wang +4
Low-loss superconducting rf devices are required when used for quantum computation. Here, we present a series of measurements and simulations showing that conducting losses in the…
Surpassing the Standard Quantum Limit using an Optical Spring
Torrey Cullen, Scott Aronson, Ron Pagano +9
Quantum mechanics places noise limits and sensitivity restrictions on physical measurements. The balance between unwanted backaction and the precision of optical measurements impos…
Quantum back action cancellation in the audio band
Jonathan Cripe, Torrey Cullen, Yanbei Chen +4
We report on the cancellation of quantum back action noise in an optomechanical cavity. We perform two measurements of the displacement of the microresonator, one in reflection of…
Room temperature optomechanical squeezing
Nancy Aggarwal, Torrey Cullen, Jonathan Cripe +7
The radiation-pressure driven interaction of a coherent light field with a mechanical oscillator induces correlations between the amplitude and phase quadratures of the light. Thes…
Broadband reduction of quantum radiation pressure noise via squeezed light injection
Min Jet Yap, Jonathan Cripe, Georgia L. Mansell +9
We present the reduction and manipulation of quantum radiation pressure noise (QRPN) in an optomechanical cavity with the injection of squeezed light. The optomechanical system con…
Observation of a room-temperature oscillator's motion dominated by quantum fluctuations over a broad audio-frequency band
Jonathan Cripe, Nancy Aggarwal, Robert Lanza +7
We report on the broadband measurement of quantum radiation pressure noise (QRPN) in an optomechanical cavity at room temperature over a broad range of frequencies relevant to grav…
Radiation-Pressure-Mediated Control of an Optomechanical Cavity
Jonathan Cripe, Nancy Aggarwal, Robinjeet Singh +7
We describe and demonstrate a method to control a detuned movable-mirror Fabry-Perot cavity using radiation pressure in the presence of a strong optical spring. At frequencies belo…