---
res:
  bibo_abstract:
  - A parallel hybrid quantum-classical algorithm for the solution of the quantum-chemical
    ground-state energy problem on gate-based quantum computers is presented. This
    approach is based on the reduced density-matrix functional theory (RDMFT) formulation
    of the electronic structure problem. For that purpose, the density-matrix functional
    of the full system is decomposed into an indirectly coupled sum of density-matrix
    functionals for all its subsystems using the adaptive cluster approximation to
    RDMFT. The approximations involved in the decomposition and the adaptive cluster
    approximation itself can be systematically converged to the exact result. The
    solutions for the density-matrix functionals of the effective subsystems involves
    a constrained minimization over many-particle states that are approximated by
    parametrized trial states on the quantum computer similarly to the variational
    quantum eigensolver. The independence of the density-matrix functionals of the
    effective subsystems introduces a new level of parallelization and allows for
    the computational treatment of much larger molecules on a quantum computer with
    a given qubit count. In addition, for the proposed algorithm techniques are presented
    to reduce the qubit count, the number of quantum programs, as well as its depth.
    The evaluation of a density-matrix functional as the essential part of our approach
    is demonstrated for Hubbard-like systems on IBM quantum computers based on superconducting
    transmon qubits.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Robert
      foaf_name: Schade, Robert
      foaf_surname: Schade
      foaf_workInfoHomepage: http://www.librecat.org/personId=75963
    orcid: 0000-0002-6268-539
  - foaf_Person:
      foaf_givenName: Carsten
      foaf_name: Bauer, Carsten
      foaf_surname: Bauer
      foaf_workInfoHomepage: http://www.librecat.org/personId=90082
  - foaf_Person:
      foaf_givenName: Konstantin
      foaf_name: Tamoev, Konstantin
      foaf_surname: Tamoev
      foaf_workInfoHomepage: http://www.librecat.org/personId=50177
  - foaf_Person:
      foaf_givenName: Lukas
      foaf_name: Mazur, Lukas
      foaf_surname: Mazur
      foaf_workInfoHomepage: http://www.librecat.org/personId=90492
    orcid: ' 0000-0001-6304-7082'
  - foaf_Person:
      foaf_givenName: Christian
      foaf_name: Plessl, Christian
      foaf_surname: Plessl
      foaf_workInfoHomepage: http://www.librecat.org/personId=16153
    orcid: 0000-0001-5728-9982
  - foaf_Person:
      foaf_givenName: Thomas
      foaf_name: Kühne, Thomas
      foaf_surname: Kühne
      foaf_workInfoHomepage: http://www.librecat.org/personId=49079
  bibo_doi: 10.1103/PhysRevResearch.4.033160
  bibo_volume: 4
  dct_date: 2022^xs_gYear
  dct_language: eng
  dct_publisher: American Physical Society@
  dct_title: Parallel quantum chemistry on noisy intermediate-scale quantum computers@
...