Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets

  title={Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets},
  author={Abhinav Kandala and Antonio Mezzacapo and Kristan Temme and Maika Takita and Markus Brink and Jerry M. Chow and Jay M. Gambetta},
Quantum computers can be used to address electronic-structure problems and problems in materials science and condensed matter physics that can be formulated as interacting fermionic problems, problems which stretch the limits of existing high-performance computers. Finding exact solutions to such problems numerically has a computational cost that scales exponentially with the size of the system, and Monte Carlo methods are unsuitable owing to the fermionic sign problem. These limitations of… 

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