Optimal quantum tomography of permutationally invariant qubits
2013 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 87, no 1, 012109- p.Article in journal (Refereed) Published
Mutually unbiased bases determine an optimal set of measurements to extract complete information about the quantum state of a system. However, quite often a priori information about the state exists, making some of the measurement bases superfluous. This is, for example, the case when multiqubit states belong to the permutationally invariant subspace. In this paper we derive the minimal sets of mutually unbiased bases needed to tomographically reconstruct such states.
Place, publisher, year, edition, pages
2013. Vol. 87, no 1, 012109- p.
Finite Hilbert-Space, State Tomography, Systems, Light
IdentifiersURN: urn:nbn:se:kth:diva-117993DOI: 10.1103/PhysRevA.87.012109ISI: 000313422700002ScopusID: 2-s2.0-84872331116OAI: oai:DiVA.org:kth-117993DiVA: diva2:604441
FunderSwedish Research Council, 621-2011-4575
QC 201302112013-02-112013-02-082013-02-11Bibliographically approved