Upper Bound to the Expectation Value of the Squared Hamiltonian |
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Authors: | MG Marmorino |
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Institution: | (1) Department of Chemistry, Indiana University South Bend, South Bend, IN 46634, USA |
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Abstract: | An upper bound to the expectation value of the squared Hamiltonian H
2 is derived which relies on replacing products of certain operators with products of the matrix representations of said operators to reduce the computational demands of H
2 . An example is given which shows the strength of the bound and an application with the Temple lower bound is shown. |
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Keywords: | Hamiltonian lower bounds moments |
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