The search for leakage-free entangling Fibonacci braiding gates
Shawn Xingshan Cui, Kevin Tian, Jennifer F. Vasquez +2 more
Abstract It is an open question if there are leakage-free entangling Fibonacci braiding gates. In this article, we give a construction of a large family of leakage-free braiding gates which are then proved to be non-entangling. We also conducted brute-force numerical searches for braids with a word-length up to seven and found no leakage-free entangling gates. These suggest the negative for the conjecture. On the other hand, we provide a much simpler protocol to generate approximately leakage-free entangling Fibonacci braiding gates than existing algorithms in the literature.
arXiv:1904.01731•Journal of Physics A Mathematical and Theoretical•Sep 27, 2019•11 citations