- Home »
- Symmetric informationally complete measurements: Can we make big ones out of small ones?

Speaker(s):

Scientific Areas:

Collection/Series:

PIRSA Number:

09120023

For a quantum system with a d-dimensional Hilbert space, a symmetric informationally complete measurement (SIC) can be thought of as a set of d^2 pure states all having the same overlap. Constructions of SICs for composite systems usually do not make use of the composite structure but treat the system as a whole. Indeed for some cases, one can prove that a SIC cannot have the symmetry that one naturally associates with the composite structure.

In this talk I give one example showing how a SIC for three qubits can be constructed from SICs for the individual qubits. I ask whether the strategy used in this example might apply to other composite cases.

©2012 Perimeter Institute for Theoretical Physics