Solid state qubit quantum state tomography

A. Walther; L. Rippe; B. Julsgaard; S. Kröll

doi:10.1117/12.772312

29 January 2008 Solid state qubit quantum state tomography

A. Walther, L. Rippe, B. Julsgaard, S. Kröll

Proceedings Volume 6903, Advanced Optical Concepts in Quantum Computing, Memory, and Communication; 69030D (2008) https://doi.org/10.1117/12.772312
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

Solid state quantum computer hardware may be based on rare-earth-ion-doped crystals. The qubits can be encoded as nuclear spin states of an ensemble of, e.g., Pr³⁺ ions, randomly doped into a Y₂SiO₅ crystal. Two such qubits can control each other through the dipole blockade effect, and transfers between the two qubit states can be done at a high fidelity, despite the strongly inhomogeneous nature of the ensemble approach. In this paper full control over the qubit Bloch sphere is demonstrated, by performing arbitrary qubit rotations and characterizing the outcomes using quantum state tomography.

Citation Download Citation

A. Walther, L. Rippe, B. Julsgaard, and S. Kröll "Solid state qubit quantum state tomography", Proc. SPIE 6903, Advanced Optical Concepts in Quantum Computing, Memory, and Communication, 69030D (29 January 2008); https://doi.org/10.1117/12.772312

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