Free fermions in disguise
I solve a quantum chain whose Hamiltonian is comprised solely of local four-fermi operators by constructing free-fermion raising and lowering operators. The free-fermion operators are both non-local and highly non-linear in the local fermions. This construction yields the complete spectrum of the Ha...
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| বিন্যাস: | Journal article |
| প্রকাশিত: |
IOP Science
2019
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