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Young frames for quantum chemistry

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arxiv 1904.10469 v1 pith:EJHFHA5R submitted 2019-04-23 physics.chem-ph quant-ph

classification physics.chem-phquant-ph
keywords quantumspinchemistryconsiderfunctionstheoryyoungadditionally
verification ladder T0 review T1 audit T2 compute T3 formal
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Quantum chemistry often considers atoms and molecules with non-zero spin. In such cases, the need for proper spin functions results in the theory of configuration state functions. Here, we consider the construction of such wavefunctions using the symmetric group and more specifically Young projectors. We discuss the formalism and detail an example to illustrate the theory. Additionally, we consider the pros and cons of specific implementations of spin symmetry in quantum simulation.

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