Microwave-to-optical conversion in a room-temperature Rb vapor with frequency-division multiplexing control
arXiv:2305.19221 · doi:10.1038/s42005-023-01455-y
Abstract
Coherent microwave-to-optical conversion is crucial for transferring quantum information generated in the microwave domain to optical frequencies, where propagation losses can be minimised. Among the various physical platforms that have realized coherent microwave-to-optical transduction, those that use atoms as transducers have shown rapid progress in recent years. In this paper we report an experimental demonstration of coherent microwave-to-optical conversion that maps a microwave signal to a large, tunable 550(30) MHz range of optical frequencies using room-temperature Rb atoms. The inhomogeneous Doppler broadening of the atomic vapor advantageously supports the tunability of an input microwave channel to any optical frequency channel within the Doppler width, along with simultaneous conversion of a multi-channel input microwave field to corresponding optical channels. In addition, we demonstrate phase-correlated amplitude control of select channels, resulting in complete extinction of one of the channels, providing an analog to a frequency domain beam splitter across five orders of magnitude in frequency. With frequency-division multiplexing capability, multi-channel conversion, and amplitude control of frequency channels, neutral atomic systems may be effective quantum processors for quantum information encoded in frequency-bin qubits.
References in corpus (18)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- ARC: An open-source library for calculating properties of alkali Rydberg atoms
- Bidirectional conversion between microwave and light via ferromagnetic magnons
- Perspectives on quantum transduction
- Frequency-encoded photonic qubits for scalable quantum information processing
- Polarized alkali vapor with minute-long transverse spin-relaxation time
- Harnessing electro-optic correlations in an efficient mechanical converter
- Absolute absorption on the rubidium D lines: comparison between theory and experiment
- Frequency Bin Entangled Photons
- Electro-Optic Frequency Beamsplitters and Tritters for High-Fidelity Photonic Quantum Information Processing
- Coherent conversion between microwave and optical photons -- an overview of physical implementations
- Controllable two-photon interference with versatile quantum frequency processor
- Coherent microwave-to-optical conversion via six-wave mixing in Rydberg atoms
- High efficiency coherent microwave-to-optics conversion via off-resonant scattering
- Efficient microwave-to-optical conversion using Rydberg atoms
- Characterization of high-temperature performance of cesium vapor cells with anti-relaxation coating
- Atomic microwave-to-optical signal transduction via magnetic-field coupling in a resonant microwave cavity
- Observation of prolonged coherence time of the collective spin wave of atomic ensemble in a paraffin coated Rb vapor cell