David Rosenbaum, University of Washington
JIangfeng Du, University of Science and Technology, China
Chris Sutherland, Institute for Quantum Computing (IQC)
Quantum cryptography protocols for qudit systems have been well established, but the ways to implement a mutually unbiased basis measurement have not been. In this talk I will describe the proposed measurement scheme, and also describe how to account for the common experimental challenge of mode-mismatch between two distinct laser pulses. I will also show how this effects the result of the measurement, and how much mode mismatch can be tolerated.
Christopher Fuchs - Perimeter Institute, IQC
Holger Müller, University of California, Berkeley
Daniel Nagaj, Slovak Academy of Sciences
Simon Phoenix, Khalifa University
The birth of quantum key distribution (QKD) 2 decades ago was accompanied by headlines the world over that the age of perfect security had finally dawned. The media, not noted for its restraint, can be forgiven. But so, too, can the physicists who, by and large, spawned such claims. In the cut-throat world of research funding, quantum key distribution was a godsend. I played the game too.
Otfried Guehne, Universität Siegen
When systematic errors are ignored in an experiment, the subsequent analysis of its results becomes questionable. We develop tests to identify systematic errors in experiments where only a finite amount of data is recorded and apply these tests to tomographic data taken in an ion-trap experiment. We put particular emphasis on quantum state tomography and present two detection methods: the first employs linear inequalities while the second is based on the generalized likelihood ratio.
Mark Howard, National University of Ireland, Maynooth