Quantum transduction is a critical technology for enabling quantum networks and distributed quantum computing. NIST researchers are developing various approaches to convert quantum information between different physical qubit systems, including:
1. Vibrating membrane convertors (VMC) that can convert between microwave and optical frequencies
2. Quantum dot-based transducers
3. Piezo-optomechanical transducers
These transduction methods are essential for networking superconducting quantum computers, which currently operate at microwave frequencies, with optical frequencies needed for low-loss quantum communication through standard optical fibers.
NIST has demonstrated low-noise transduction with background noise levels as low as 100 photons per hour, but challenges remain in achieving telecom compatibility and reducing noise further. Current research efforts are focused on developing practical transducers and metrology tools for characterizing their performance.
The Technology Readiness Level (TRL) for these research efforts is 6, indicating that advanced prototypes exist and the technology is still in the development phase.
Source: https://www.nist.gov/pml/quantum-networks-nist/technologies-quantum-networks/transducers
Keywords: quantum transduction, frequency conversion, quantum noise, quantum information, transducer platforms
