Bypassing the filtering challenges in microwave-optical quantum transduction through optomechanical four-wave mixing

• URL: http://arxiv.org/abs/2409.18781v1
• Date: Fri, 27 Sep 2024 14:29:12 GMT
• Title: Bypassing the filtering challenges in microwave-optical quantum transduction through optomechanical four-wave mixing
• Authors: James Schneeloch, Erin Sheridan, A. Matthew Smith, Christopher C. Tison, Daniel L. Campbell, Matthew D. LaHaye, Michael L. Fanto, Paul M. Alsing,
• Abstract summary: Microwave-optical-transduction is a key enabling technology in quantum networking. We show how one may achieve the same transduction objective with comparable efficiency using a four-wave mixing process. We develop this process by considering higher-order analogues of photoelasticity and electrostriction.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Microwave-optical quantum transduction is a key enabling technology in quantum networking, but has been plagued by a formidable technical challenge. As most microwave-optical-transduction techniques rely on three-wave mixing processes, the processes consume photons from a driving telecom-band (pump) laser to convert input microwave photons into telecom-band photons detuned from the laser by this microwave frequency. However, cleanly separating out single photons detuned only a few GHz away from a classically bright laser in the same spatial mode requires frequency filters of unprecedented extinction over a very narrow transition band, straining the capabilities of today's technology. Instead of confronting this challenge directly, we show how one may achieve the same transduction objective with comparable efficiency using a four-wave mixing process in which $pairs$ of pump photons are consumed to produce transduced optical photons widely separated in frequency from the pump. We develop this process by considering higher-order analogues of photoelasticity and electrostriction than those used in conventional optomechanics, and examine how the efficiency of this process can be made to exceed conventional optomechanical couplings.

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