Media type: E-Article Title: Measuring the quality of a quantum reference frame: The relative entropy of frameness Contributor: Gour, Gilad; Marvian, Iman; Spekkens, Robert W. Published: American Physical Society (APS), 2009 Published in: Physical Review A, 80 (2009) 1 Language: English DOI: 10.1103/physreva.80.012307 ISSN: 1050-2947; 1094-1622 Origination: Footnote: