Christina Daniel

I am a research assistant in theoretical physics. This website,, serves to organize my ongoing learning and research as well as to provide a resource to other learners around the world.

Partnership with Myntor

Derive It is glad to announce a new partnership with the startup company, Myntor ( They are a venture backed edtech startup with 1200+ students that provides AI-powered test prep courses for AP subjects and the SAT/ACT.     Students of Myntor’s test preparation programs have been accepted to universities such as MIT and Harvard. The …

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Mathematics of the Slater Determinant

This post, largely based on Reference 1, is about the Slater determinant. The Slater determinant is related to the Hartree Product. In that post, it was determined that a Hartree Product does not meet the antisymmetry principle. The Slater determinant is one way to fix this problem. John C. Slater, developer of the Slater determinant. Two Electrons …

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Hartree Product

In quantum chemistry, a wave function for a single electron is called an orbital or a spin orbital, but what could be a wave function for several electrons? [1] One option is related to the Hartree Product. Douglas Hartree, a contributor to the field of quantum chemistry. Noninteracting System According to Attila Szabo and Neil …

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