## Friday, January 14, 2011

### Theory Update 36

A while back we played with Terence Tao's honeycomb pictures. Now we see that a one hexagon honeycomb is dual to the tetractys diagram for qutrits.
The Tao honeycomb represents three sets of eigenvalues for $3 \times 3$ matrices, with a zero sum. These eigenvalues are now indexed by tetractys edges, such as the edge $XXX$ goes to $XXY$.

#### 1 comment:

1. Joel, I accidentally deleted your last comment, sorry! Please post again.

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