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Updated: Feb 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Frequency conversion in ultrastrong cavity QED
Anton Frisk Kockum1, Vincenzo Macrì2,3, Luigi Garziano2,3,4
1Center for Emergent Matter Science, Riken, Saitama, 351-0198, Japan. anton.frisk.kockum@gmail.com.
Abstract:
We propose a new method for frequency conversion of photons which is both versatile and deterministic. We show that a system with two resonators ultrastrongly coupled to a single qubit can be used to realise both single- and multiphoton frequency-conversion processes. The conversion can be exquisitely controlled by tuning the qubit frequency to bring the desired frequency-conversion transitions on or off resonance. Considering recent experimental advances in ultrastrong coupling for circuit QED and other systems, we believe that our scheme can be implemented using available technology.
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