An optical-access low-temperature He-3 system for driven nonlinear dynamics in longcoherence cavity quantum electrodynamics
Abstract
The requested instrument is a BlueFors low-temperature continuously-pumped He-3 system (BF-LD-HE250) with driven optical and microwave access towards understanding nonlinear dynamics in long-coherence solid-state cavity quantum electrodynamics. The He-3 system reaches a base temperature below 500 mK, with 3 optical access ports and a 3T cryogen-free solenoid magnet at 4K (0.5% inhomogeneity). The He-3 system and magnet has a pulse tube cryocooler and radiation shields, 4 superconducting SMA 18-GHz microwave feedthroughs in a line-of-sight port, 16 CuNi microwave feedthroughs in a line-of-sight port, pre-wired for low temperature 6-axis piezoelectric nanopositioning, along with pre-wiring for dilution fridge operation capability.This requested instrument enhances Department of Defense science and technology, enabling three example Defense applied translation and basic research capabilities. First (Capability 1), this instrument allows driven nonlinear dynamics in long-coherence atom-cavity quantumelectrodynamics based on silicon photonic crystals. This includes a spin-photon interface, projection of the Poincar~ sections and Lyapunov exponents, and L~vy trajectory of the intracavity photon fields in the strongly-coupled cavity quantum electrodynamics system. This enables chaos-based secure communications, computing, frequency metrology and sensing Second (Capability 2), this instrument allows simultaneously coupled microwave and midinfrareddriving oscillations onto the long-coherence silicon cavity. This includes dynamicdecoupling to extend the spin decoherence, Hahn echo spectroscopy, and preparationmanipulation- readout sequences for the photonic crystal sub-system. Third (Capability 3), the BlueFors He-3 system allows studies of driven and coupled nonlinear oscillations in the microcavities. Assisted by a second auxiliary cavity, it enables the study of coupled network nodes. This enables the formation of repeater nodes in a secure high-dimensional communications network.The requested instrument budget is $260,000 and will be matched with $104,350 from discretionary funds of the investigator. Coupled with precision mid-infrared laser and frequency metrology at UCLA, the requested equipment provides a one-of-its-kind instrumentation in the greater Los Angeles, San Diego and Santa Barbara greater metropolitan area. It serves as an open and readily-available instrument for the Department of Defense, enabling world-class studies in driven nonlinear dynamics in cavity quantum electrodynamics.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 13, 2019
- Source ID
- N000141912388
Entities
People
- Chee Wei Wong
Organizations
- Office of Naval Research
- United States Navy
- University of California, Los Angeles