Quantum simulation of operator spreading in the chaotic Ising model.

  title={Quantum simulation of operator spreading in the chaotic Ising model.},
  author={Michael R. Geller and Andrew Arrasmith and Zoe Holmes and Bin Yan and Patrick J. Coles and Andrew T. Sornborger},
  journal={Physical review. E},
  volume={105 3-2},
There is great interest in using near-term quantum computers to simulate and study foundational problems in quantum mechanics and quantum information science, such as the scrambling measured by an out-of-time-ordered correlator (OTOC). Here we use an IBM Q processor, quantum error mitigation, and weaved Trotter simulation to study high-resolution operator spreading in a four-spin Ising model as a function of space, time, and integrability. Reaching four spins while retaining high circuit… 

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