Large Entangled state Generation via Non-Destructive Readout
Abstract
Georgia Tech Research Institute (GTRI) proposes to expand the current state of the art in entanglement-based metrological enhancement employing techniques compatible with a portable microwave frequency standard. In the proposed project, we will use the existing GTRI cavity-integrated compact Penning ion trap apparatus to efficiently create highly-entangled many-body spin states of unprecedented size (N#100) within 2D crystals of 40Ca+. Efficient generation of large Greenberger-Horne-Zeilinger (GHZ) states would augment existing Navy capabilities in the areas of precision position, navigation, and timing and electromagnetic field sensing. Our proposed method of GHZ state generation would prove particularly valuable for applications in a resource-constrained (e.g. fielded) regime, where limited optical power necessitates more compact atomic samples (fewer spins) and weaker induced spin couplings (smaller squeezing parameters). Reduced atom number also translates to a smaller second-order Doppler systematic shift. Beyond quantum sensing and timing applications, the large GHZ states produced in this program will allow future studies of open quantum system dynamics relevantfor noisy intermediate scale quantum (NISQ) devices whose purpose is to outperform classical simulations. The proposed effort is well-described by the following ONR research challenges: (i) Innovative protocols for the preparation, readout, characterization, and utilization of quantum correlated states for improved sensing and (ii) Protocols for efficient atom, ion, or molecule cooling and trapping -compact, low-power clocks. We note that both quantum sensing and atomic clock applications will ultimately benefit from efficient, high-fidelity production of GHZ states.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 15, 2024
- Source ID
- N000142412360
Entities
People
- Brian C. Sawyer
Organizations
- Georgia Tech Applied Research Corporation
- Office of Naval Research
- United States Navy