title: Full coherent frequency conversion between two propagating microwave modes.
abstract: We demonstrate full frequency conversion in the microwave domain using a Josephson three-wave mixing device pumped at the difference between the frequencies of its fundamental eigenmodes. By measuring the signal output as a function of the intensity and phase of the three input signal, idler, and pump tones, we show that the device functions as a controllable three-wave beam splitter or combiner for propagating microwave modes at the single-photon level, in accordance with theory. Losses at the full conversion point are found to be less than 10(-2). Potential applications of the device include quantum information transduction and realization of an ultrasensitive interferometer with controllable feedback.
authors.affiliation: Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA. baleegh.abdo@yale.edu
authors.forename: Baleegh
authors.initials: B
authors.lastname: Abdo
authors.forename: Katrina
authors.initials: K
authors.lastname: Sliwa
authors.forename: Flavius
authors.initials: F
authors.lastname: Schackert
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bergeal
authors.forename: Michael
authors.initials: M
authors.lastname: Hatridge
authors.forename: Luigi
authors.initials: L
authors.lastname: Frunzio
authors.forename: A Douglas
authors.initials: AD
authors.lastname: Stone
authors.forename: Michel
authors.initials: M
authors.lastname: Devoret