An example of a cubic lattice
Albert Einstein, a key theoretical physicist in the 20th century who developed the theory of relativity and parts of early quantum theory.

John Hubbard (27 October 1931 – 27 November 1980) was a British physicist, best known for the Hubbard model for interacting electrons, the Hubbard–Stratonovich transformation, and the Hubbard approximations.

- John Hubbard (physicist)

The Hubbard model, named after John Hubbard, is a simple model of interacting particles in a lattice, with only two terms in the Hamiltonian (see example below): a kinetic term allowing for tunneling ("hopping") of particles between sites of the lattice and a potential term consisting of an on-site interaction.

- Hubbard model
An example of a cubic lattice

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