Ah, walking across glued trees [1]! Not sure of its practical merits however, aha... [1] - https://arxiv.org/abs/quant-ph/0209131 https://arxiv.org/abs/quant-p

Ah, walking across glued trees [1]! Not sure of its practical merits however, aha... [1] - https://arxiv.org/abs/quant-ph/0209131 https://arxiv.org/abs/quant-ph/0209131