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Argueello-Luengo, Javier; Gonzalez-Tudela, Alejandro; Shi, Tao3; Zoller, Peter4; Cirac, J. Ignacio
Analogue quantum chemistry simulation
Source PublicationNATURE
Language英语
KeywordGROUND-STATE PHYSICS ATOM
AbstractComputing the electronic structure of molecules with high precision is a central challenge in the field of quantum chemistry. Despite the success of approximate methods, tackling this problem exactly with conventional computers remains a formidable task. Several theoretical(1,2) and experimental(3-5) attempts have been made to use quantum computers to solve chemistry problems, with early proofof-principle realizations done digitally. An appealing alternative to the digital approach is analogue quantum simulation, which does not require a scalable quantum computer and has already been successfully applied to solve condensed matter physics problems(6-8). However, not all available or planned setups can be used for quantum chemistry problems, because it is not known how to engineer the required Coulomb interactions between them. Here we present an analogue approach to the simulation of quantum chemistry problems that relies on the careful combination of two technologies: ultracold atoms in optical lattices and cavity quantum electrodynamics. In the proposed simulator, fermionic atoms hopping in an optical potential play the role of electrons, additional optical potentials provide the nuclear attraction, and a single-spin excitation in a Mott insulator mediates the electronic Coulomb repulsion with the help of a cavity mode. We determine the operational conditions of the simulator and test it using a simple molecule. Our work opens up the possibility of efficiently computing the electronic structures of molecules with analogue quantum simulation.
2019
ISSN0028-0836
Volume574Issue:7777Pages:215
Cooperation Status国际
Subject AreaScience & Technology - Other Topics
MOST Discipline CatalogueMultidisciplinary Sciences
DOI10.1038/s41586-019-1614-4
Indexed BySCIE
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/26937
CollectionSCI期刊论文
Affiliation1.Max Planck Inst Quantum Opt, Garching, Germany
2.Barcelona Inst Sci & Technol, Inst Ciencies Foton ICFO, Castelldefels, Spain
3.CSIC, IFF, Madrid, Spain
4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing, Peoples R China
5.Univ Innsbruck, Ctr Quantum Phys, Innsbruck, Austria
6.MCQST, Munich, Germany
Recommended Citation
GB/T 7714
Argueello-Luengo, Javier,Gonzalez-Tudela, Alejandro,Shi, Tao,et al. Analogue quantum chemistry simulation[J]. NATURE,2019,574(7777):215.
APA Argueello-Luengo, Javier,Gonzalez-Tudela, Alejandro,Shi, Tao,Zoller, Peter,&Cirac, J. Ignacio.(2019).Analogue quantum chemistry simulation.NATURE,574(7777),215.
MLA Argueello-Luengo, Javier,et al."Analogue quantum chemistry simulation".NATURE 574.7777(2019):215.
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