Abstract

Accurate and robust control over quantum systems plays a key role in quantum information science. The use of systems with large state spaces (qudits) may prove a useful resource for quantum information tasks if good laboratory tools for qudit manipulation and measurement can be developed. Over the past few years we have developed and experimentally implemented a protocol to perform high-fidelity unitary transformations in the 16 dimensional hyperfine ground manifold of Cesium-133 atoms, driving the system with phase modulated radio-frequency and microwave magnetic fields and using the tools of optimal control to find appropriate control waveforms. We have recently extended our protocol to investigate quantum state tomography based on a combination of unitary transformations and Stern-Gerlach analysis. Experimental results shown that optimal tomography based on mutually-unbiased-bases …

Date

January 1, 1970

Authors

Hector Sosa Martinez, Nathan Lysne, Poul Jessen, Charles Baldwin, Amir Kalev, Ivan Deutsch

Journal

APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts

Volume

2015

Pages

T6. 009