Single-sideband modulator for frequency domain multiplexing of superconducting qubit readout
Abstract
We introduce and experimentally characterize a superconducting single-sideband modulator compatible with cryogenic microwave circuits and propose its use for frequency domain multiplexing of superconducting qubit readout. The monolithic double-balanced modulators that comprise the device are formed with purely reactive elements (capacitors and Josephson junction inductors) and require no microwave-frequency control tones. Microwave signals in the 4 to 8 GHz band, with power up to −85 dBm, are converted up or down in frequency by as much as 120 MHz. Spurious harmonics in the device can be suppressed by up to 25 dB for select probe and modulation frequencies.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 17, 2017
- Source ID
- 10.1063/1.4981390
Entities
People
- Benjamin J. Chapman
- Eric I. Rosenthal
- Gene C. Hilton
- Joseph Kerckhoff
- Konrad W. Lehnert
- Leila R. Vale
Organizations
- Army Research Office
- National Institute of Standards and Technology
- National Science Foundation
- University of Colorado