Coherent Operations, Entanglement, and Progress Toward Quantum Search in a Large 2D Array of Neutral Atom Qubits
Abstract
We have created a stable, inherently 2D array of neutral cesium atom qubits. Novel trapping schemes based first on projected arrays of Gaussian beams, and later on projected line grids, have been implemented. An atomic qubit array with 49 trapping sites and a loading fraction of 0.61 has been demonstrated, with progress toward an 121 site trap array. Single atom qubits in this array are individually addressable. Single qubit gates have been demonstrated with a fidelity of 0.9983(14) for global operations and 0.9923(7) for site specific operations. Two-qubit C-NOT gates have been implemented, and the non-classical result of 0.73(5) entanglement fidelity has been measured by Bell state parity oscillation. The system performance has been tuned using closed-loop optimization via original control software. Progress has been made toward implementing Grovers quantum search algorithm in the atomic qubit array.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 18, 2015
- Accession Number
- AD1010895
Entities
People
- Martin T. Lichtman
Organizations
- University of Wisconsin–Madison