In this work, we test a recently developed method to enhance classical auxiliary-field quantum Monte Carlo (AFQMC) calculations with quantum computers against examples from chemistry and material science, representative of classes of industry-relevant systems. As molecular test cases, we calculate the energy curve of H4 and the relative energies of ozone and singlet molecular oxygen with respect to triplet molecular oxygen, which is industrially relevant in organic oxidation reactions. We find that trial wave functions beyond single Slater determinants improve the performance of AFQMC and allow it to generate energies close to chemical accuracy compared to full configuration interaction or experimental results. In the field of material science, we study the electronic structure properties of cuprates through the quasi-1D Fermi–Hubbard model derived from CuBr2, where we find that trial wave functions with both significantly larger fidelities and lower energies over a mean-field solution do not necessarily lead to AFQMC results closer to the exact ground state energy.
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28 July 2023
Research Article|
July 31 2023
Classical and quantum trial wave functions in auxiliary-field quantum Monte Carlo applied to oxygen allotropes and a CuBr2 model system Available to Purchase
Maximilian Amsler
;
Maximilian Amsler
(Investigation, Validation, Writing – original draft, Writing – review & editing)
1
Corporate Sector Research and Advance Engineering, Robert Bosch GmbH
, Robert-Bosch-Campus 1, 71272 Renningen, Germany
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Peter Deglmann
;
Peter Deglmann
(Investigation, Validation, Writing – original draft, Writing – review & editing)
2
BASF SE, Quantum Chemistry
, Carl-Bosch-Str. 38, 67063 Ludwigshafen, Germany
3
BASF Digital Solutions GmbH, Next Generation Computing
, Pfalzgrafenstr. 1, 67056 Ludwigshafen, Germany
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Matthias Degroote
;
Matthias Degroote
(Investigation, Validation, Writing – original draft, Writing – review & editing)
4
Quantum Lab, Boehringer Ingelheim
, Ingelheim am Rhein, Germany
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Michael P. Kaicher
;
Michael P. Kaicher
(Investigation, Validation, Writing – original draft, Writing – review & editing)
3
BASF Digital Solutions GmbH, Next Generation Computing
, Pfalzgrafenstr. 1, 67056 Ludwigshafen, Germany
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Matthew Kiser
;
Matthew Kiser
(Investigation, Validation, Writing – original draft, Writing – review & editing)
5
Volkswagen AG
, Ungererstr. 69, 80805 Munich, Germany
6
TUM School of Natural Sciences, Technical University of Munich
, Boltzmannstr. 10, 85748 Garching, Germany
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Michael Kühn
;
Michael Kühn
(Investigation, Validation, Writing – original draft, Writing – review & editing)
2
BASF SE, Quantum Chemistry
, Carl-Bosch-Str. 38, 67063 Ludwigshafen, Germany
3
BASF Digital Solutions GmbH, Next Generation Computing
, Pfalzgrafenstr. 1, 67056 Ludwigshafen, Germany
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Chandan Kumar
;
Chandan Kumar
(Investigation, Validation, Writing – original draft, Writing – review & editing)
7
BMW Group, New Technology and Innovation
, Parkring 19-23, 85748 Garching, Munich, Germany
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Andreas Maier
;
Andreas Maier
(Investigation, Validation, Writing – original draft, Writing – review & editing)
8
Munich Re AG
, Munich, Germany
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Georgy Samsonidze
;
Georgy Samsonidze
(Investigation, Validation, Writing – original draft, Writing – review & editing)
9
Robert Bosch LLC, Research and Technology Center
, Sunnyvale, California 94085, USA
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Anna Schroeder
;
Anna Schroeder
(Investigation, Validation, Writing – original draft, Writing – review & editing)
1
Corporate Sector Research and Advance Engineering, Robert Bosch GmbH
, Robert-Bosch-Campus 1, 71272 Renningen, Germany
10
Merck KGaA
, Frankfurter Straße 250, 64293 Darmstadt, Germany
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Michael Streif
;
Michael Streif
a)
(Investigation, Supervision, Validation, Writing – original draft, Writing – review & editing)
4
Quantum Lab, Boehringer Ingelheim
, Ingelheim am Rhein, Germany
a)Author to whom correspondence should be addressed: [email protected]
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Davide Vodola
;
Davide Vodola
(Investigation, Validation, Writing – original draft, Writing – review & editing)
3
BASF Digital Solutions GmbH, Next Generation Computing
, Pfalzgrafenstr. 1, 67056 Ludwigshafen, Germany
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Christopher Wever
;
Christopher Wever
(Investigation, Validation, Writing – original draft, Writing – review & editing)
1
Corporate Sector Research and Advance Engineering, Robert Bosch GmbH
, Robert-Bosch-Campus 1, 71272 Renningen, Germany
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QUTAC Material Science Working Group
QUTAC Material Science Working Group
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Maximilian Amsler
1
Peter Deglmann
2,3
Matthias Degroote
4
Michael P. Kaicher
3
Matthew Kiser
5,6
Michael Kühn
2,3
Chandan Kumar
7
Andreas Maier
8
Georgy Samsonidze
9
Anna Schroeder
1,10
Michael Streif
4,a)
Davide Vodola
3
Christopher Wever
1
QUTAC Material Science Working Group
1
Corporate Sector Research and Advance Engineering, Robert Bosch GmbH
, Robert-Bosch-Campus 1, 71272 Renningen, Germany
2
BASF SE, Quantum Chemistry
, Carl-Bosch-Str. 38, 67063 Ludwigshafen, Germany
3
BASF Digital Solutions GmbH, Next Generation Computing
, Pfalzgrafenstr. 1, 67056 Ludwigshafen, Germany
4
Quantum Lab, Boehringer Ingelheim
, Ingelheim am Rhein, Germany
5
Volkswagen AG
, Ungererstr. 69, 80805 Munich, Germany
6
TUM School of Natural Sciences, Technical University of Munich
, Boltzmannstr. 10, 85748 Garching, Germany
7
BMW Group, New Technology and Innovation
, Parkring 19-23, 85748 Garching, Munich, Germany
8
Munich Re AG
, Munich, Germany
9
Robert Bosch LLC, Research and Technology Center
, Sunnyvale, California 94085, USA
10
Merck KGaA
, Frankfurter Straße 250, 64293 Darmstadt, Germany
a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 159, 044119 (2023)
Article history
Received:
February 17 2023
Accepted:
July 06 2023
Citation
Maximilian Amsler, Peter Deglmann, Matthias Degroote, Michael P. Kaicher, Matthew Kiser, Michael Kühn, Chandan Kumar, Andreas Maier, Georgy Samsonidze, Anna Schroeder, Michael Streif, Davide Vodola, Christopher Wever, QUTAC Material Science Working Group; Classical and quantum trial wave functions in auxiliary-field quantum Monte Carlo applied to oxygen allotropes and a CuBr2 model system. J. Chem. Phys. 28 July 2023; 159 (4): 044119. https://doi.org/10.1063/5.0146934
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