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Results tagged with condensed-matter
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user 140398
The study of physical properties of condensed phases of matter, including solids and liquids.
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Nagaoka ferromagnetism in a four-site lattice
I'm reading Altland & Simons' Condensed Matter Field Theory, and when presenting the t-J model,
$$ H = -t \sum_{<mn>}P_s a^{\dagger}_{m\sigma} a_{n\sigma} P_s + J \sum_{<mn>} S_m \cdot S_n $$
they sa …
- 191
1
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Accepted
One-Particle Operators in QFT from the book "Condensed Matter Field Theory"
I believe you are confused by the notation. Here is an example of a multi particle state:
$$|\lambda_1, \lambda_1, \lambda_2, \lambda_3, \lambda_3\rangle = |\lambda_1\rangle \otimes |\lambda_1\rangle …
- 191