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Showing 2006 · quant-phShow all
3 papers · 2 filters
quant-ph2006★ 118 cited
Three ways to look at mutually unbiased bases
Ingemar Bengtsson
This is a review of the problem of Mutually Unbiased Bases in finite dimensional Hilbert spaces, real and complex. Also a geometric measure of "mubness" is introduced, and applied…
quant-ph2006★ 177 cited
Experimental demonstration of four-party quantum secret sharing
S. Gaertner, C. Kurtsiefer, M. Bourennane +1
Secret sharing is a multiparty cryptographic task in which some secret information is splitted into several pieces which are distributed among the participants such that only an au…
quant-ph2006★ 119 cited
Mubs and Hadamards of Order Six
Ingemar Bengtsson, Wojciech Bruzda, Asa Ericsson +3
We report on a search for mutually unbiased bases (MUBs) in 6 dimensions. We find only triplets of MUBs, and thus do not come close to the theoretical upper bound 7. However, we po…