Compression of Hamiltonian matrix: Application to spin-1/2 Heisenberg square lattice
We introduce a simple algorithm providing a compressed representation (∈ℝNorbits×Norbits×ℕNorbits) of an irreducible Hamiltonian matrix (number of magnons M constrained, dimension: Nspins!M!(Nspins−M)!>Norbits) of the spin-1/2 Heisenberg antiferromagnet on the L×L non-periodic lattice, not lookin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2016-09-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4963834 |