Accurate microwave control and real-time diagnostics of neutral-atom qubits
Document Type
Article
Publication Date
2-13-2009
Abstract
We demonstrate accurate single-qubit control in an ensemble of atomic qubits trapped in an optical lattice. The qubits are driven with microwave radiation, and their dynamics tracked by optical probe polarimetry. Real-time diagnostics is crucial to minimize systematic errors and optimize the performance of single-qubit gates, leading to fidelities of 0.99 for single-qubit π rotations. We show that increased robustness to large, deliberately introduced errors can be achieved through the use of composite rotations. However, during normal operation the combination of very small intrinsic errors and additional decoherence during the longer pulse sequences precludes any significant performance gain in our current experiment. © 2009 The American Physical Society.
Publication Title
Physical Review A - Atomic, Molecular, and Optical Physics
Recommended Citation
Rakreungdet, W.,
Lee, J.,
Lee, K.,
Mischuck, B.,
Montano, E.,
&
Jessen, P.
(2009).
Accurate microwave control and real-time diagnostics of neutral-atom qubits.
Physical Review A - Atomic, Molecular, and Optical Physics,
79(2).
http://doi.org/10.1103/PhysRevA.79.022316
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/9967