2013

Adiabatic Quantum Simulation of Quantum Chemistry

Babbush, Ryan, Love, Peter J., Aspuru-Guzik, Alán

Understand

We show how to apply the quantum adiabatic algorithm directly to the quantum computation of molecular properties.

  • We describe a procedure to map electronic structure Hamiltonians to 2-local qubit Hamiltonians with a small set of physically realizable couplings.
  • By combining the Bravyi-Kitaev construction to map fermions to qubits with perturbative gadgets to reduce the Hamiltonian to 2-local, we obtain precision requirements on the coupling strengths and a number of ancilla qubits that scale polynomially in the problem size.
  • Hence our mapping is efficient.

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