Low-Noise Amplification and Frequency Conversion with a Multiport Microwave Optomechanical Device

Abstract

High-gain amplifiers of electromagnetic signals operating near the quantum limit are crucial for quantum information systems and ultrasensitive quantum measurements. However, the existing techniques have a limited gain-bandwidth product and only operate with weak input signals. Here we demonstrate a two-port optomechanical scheme for amplification and routing of microwave signals, a system that simultaneously performs high-gain amplification and frequency conversion in the quantum regime. Our amplifier, implemented in a two-cavity microwave optomechanical device, shows 41 dB of gain and has a high dynamic range, handling input signals up to 10 13 photons per second, three orders of magnitude more than corresponding Josephson parametric amplifiers. We show that although the active medium, the mechanical resonator, is at a high temperature far from the quantum limit, only 4.6 quanta of noise is added to the input signal. Our method can be readily applied to a wide variety of optomechanical systems, including hybrid optical-microwave systems, creating a universal hub for signals at the quantum level. arXiv:1602.05779v1 [cond-mat.mes-hall]

Minimal Models for Nonreciprocal Amplification Using Biharmonic Drives

“…Similar noise suppression in reciprocal optomechanicalbased amplifiers was found in Refs. [23,26] and was also reported in recent experiments [27,28].…”

“…Clearly, the same "dissipative" amplifier could be realized in the resolved-sideband regime, i.e., with two independent modes,d 1 andd 2 . Based on such a three-mode setup, a recent experiment showed that broadband amplification close to the quantum limit is possible [27].…”

Noiseless Quantum Measurement and Squeezing of Microwave Fields Utilizing Mechanical Vibrations

“…Therefore, these amplifiers are currently actively used in quantum science. Also electromechanical systems have been investigated to this end [11][12][13][14][15]. In recent work, Refs.…”

“…In recent work, Refs. [14,15] demonstrate a phase-insensitive amplifier with a noise relatively low but not quite yet at the quantum limit.…”

Photon-phonon-photon transfer in optomechanics

“…Transfer of both negativity and non-Gaussianity is much more demanding than the transfer of Gaussian entanglement. We verify that the electromechanical platforms930 with microwave radiation are already feasible for such transduction preserving negativity of Wigner function. The optomechanical experiments require coupling higher than critical to reach this possibility.…”