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quant-ph2018
Subsystem symmetries, quantum cellular automata, and computational phases of quantum matter
David T. Stephen, Hendrik Poulsen Nautrup, Juani Bermejo-Vega +2
Quantum phases of matter are resources for notions of quantum computation. In this work, we establish a new link between concepts of quantum information theory and condensed matter…
quant-ph2018
A computationally universal phase of quantum matter
Robert Raussendorf, Cihan Okay, Dong-Sheng Wang +2
We provide the first example of a symmetry protected quantum phase that has universal computational power. Throughout this phase, which lives in spatial dimension two, the ground s…