Quantum centipedes: collective dynamics of interacting quantum walkers
Quantum centipedes: collective dynamics of interacting quantum walkers
We consider the quantum centipede made of N fermionic quantum walkers on the one-dimensional lattice interacting by means of the simplest of all hard-bound constraints: the distance between two consecutive fermions is either one or two lattice spacings. This composite quantum walker spreads ballistically, just as the simple quantum walk. …