S. Gharibian, Landau, Z., Shin, S. Woo, and Wang, G.,
“Tensor network non-zero testing”,
Quantum Information & Computation, vol. 15, no. 9-10, pp. 885-899, 2015.
A. M. Childs, Gosset, D., Nagaj, D., Raha, M., and Webb, Z.,
“Momentum switches”,
Quantum Information and Computation, vol. 15, no. 7-8, pp. 601-621, 2015.