Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 19: Quanteninformation: Festkörper und Photonen

Q 19.1: Talk

Monday, March 12, 2012, 16:30–16:45, V38.04

Long-range quantum gates for nitrogen-vacancy defect centers in diamond — •Hendrik Weimer, Norman Yao, Chris Laumann, and Mikhail Lukin — Physics Department, Harvard University, Cambridge, MA, USA

Nitrogen-vacancy (NV) defect centers in diamond are a promising platform for room-temperature quantum computation. However, the coupling of individual NV qubits remains a challenge as the distances required for optical addressing are much larger than the typical interaction scales. We propose to realize long-range quantum gates through interactions with an intermediate NV spin ensemble. We show that engineering the many-body spin ensemble allows to achieve high-fidelity gates even in the presence of strong disorder [1].

[1] H. Weimer et al., arXiv:1109.1003 (2011).