Holger Müller, University of California, Berkeley
Christopher Fuchs - Perimeter Institute, IQC
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.
JIangfeng Du, University of Science and Technology, China
Klaus Ensslin, Swiss Federal Institute of Technology, Zurich
Thomas Blasi, Harvard
Pol Forn-Díaz, California Institute of Technology
Robert Koenig, Institute for Quantum Computing (IQC)
Konrad Banaszek, University of Warsaw
Quantum theory is inherently statistical. This entails repetition of experiments over a number of identically prepared quantum objects, if one wants to know the "true state" or the "true value" of the parameter that specifies the quantum state. In applications, one needs to design the estimation procedure in such a way that the estimated value of the parameter should be close to the true value (consistency), and that the uncertainty of the estimated value should be as small as possible (efficiency).