Schaffry M, Filidou V, Karlen SD, Gauger EM, Benjamin SC, Anderson HL, Ardavan A, Briggs GAD, Maeda K, Henbest KB, Giustino F, Morton JJL, et al27 November 2009preprint Book Title:arXivNo abstract availableKeywords:5108 Quantum Physics , 51 Physical Sciences DOI10.48550/arxiv.0911.5320