Optimized low-depth quantum circuits for molecular electronic structure using a separable-pair approximation

  title={Optimized low-depth quantum circuits for molecular electronic structure using a separable-pair approximation},
  author={Jakob S. Kottmann and Al{\'a}n Aspuru‐Guzik},
  journal={Physical Review A},
We present a classically solvable model that leads to optimized low-depth quantum circuits leveraging separable pair approximations. The obtained circuits are well suited as a baseline circuit for emerging quantum hardware and can, in the long term, provide significantly improved initial states for quantum algorithms. The associated wavefunctions can be represented with linear memory requirement which allows classical optimization of the circuits and naturally defines a minimum benchmark for… 

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