An integrated microwave-to-optics interface for scalable quantum computing
arXiv:2210.15702 · doi:10.1038/s41565-023-01515-y
Abstract
Microwave-to-optics transduction is emerging as a vital technology for scaling quantum computers and quantum networks. To establish useful entanglement links between qubit processing units, several key conditions have to be simultaneously met: the transducer must add less than a single quantum of input referred noise and operate with high-efficiency, as well as large bandwidth and high repetition rate. Here we present a new design for an integrated transducer based on a planar superconducting resonator coupled to a silicon photonic cavity through a mechanical oscillator made of lithium niobate on silicon. We experimentally demonstrate its unique performance and potential for simultaneously realizing all of the above conditions, measuring added noise that is limited to a few photons, transduction efficiencies as high as 0.9%, with a bandwidth of 14.8 MHz and a repetition rate of up to 100 kHz. Our device couples directly to a 50-Ohm transmission line and can easily be scaled to a large number of transducers on a single chip, paving the way for distributed quantum computing.
References in corpus (5)
Cited by in corpus (25)
- Review of Distributed Quantum Computing. From single QPU to High Performance Quantum Computing
- Entangling microwaves with optical light
- Piezoelectric actuation for integrated photonics
- Ultralow-loss integrated photonics enables bright, narrow-band, photon-pair sources
- Optical readout of a superconducting qubit using a piezo-optomechanical transducer
- Scalable microwave-to-optical transducers at single photon level with spins
- Bidirectional microwave-optical transduction based on integration of high-overtone bulk acoustic resonators and photonic circuits
- Degeneracy-breaking and Long-lived Multimode Microwave Electromechanical Systems Enabled by Cubic Silicon-Carbide Membrane Crystals
- A two-dimensional optomechanical crystal for quantum transduction
- Design of a release-free piezo-optomechanical quantum transducer
- Coherent Control of an Optical Quantum Dot Using Phonons and Photons
- Heterogeneous integration of amorphous silicon carbide on thin film lithium niobate
- Heralding entangled optical photons from a microwave quantum processor
- Microwave-optics entanglement via coupled opto- and magnomechanical microspheres
- Approaching optimal microwave-acoustic transduction on lithium niobate using SQUID arrays
- Low-noise Optomechanical Single Phonon-photon Conversion for Quantum Networks
- Bidirectional microwave-optical conversion with an integrated soft-ferroelectric barium titanate transducer
- Overhead in Quantum Circuits with Time-Multiplexed Qubit Control
- Photonic crystal cavities based on suspended yttrium iron garnet nanobeams
- Step-by-step design guide of a cryogenic three-axis vector magnet
- Distilled remote entanglement between superconducting qubits across optical channels
- Membrane phononic crystals for high-Qm mechanical defect modes in piezoelectric aluminum nitride
- Nonlinear photonic architecture for fault-tolerant quantum computing
- Bypassing the filtering challenges in microwave-optical quantum transduction through optomechanical four-wave mixing
- Stabilizing an optical cavity containing a bulk diamond crystal at millikelvin temperatures in a cryogen-free dilution refrigerator