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3
questions
2
votes
1
answer
178
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Reduced density matrix of the edge spin-1/2 in AKLT spin chain
I am trying to understand the paper titled, "Entanglement in a Valence-Bond-Solid State" by Fan, Korepin, and Roychowdhury (https://arxiv.org/abs/quant-ph/0406067).
I was able to understand the ...
- 41
3
votes
1
answer
510
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ground state of spin chain with $Z_i X_{i+1} Z_{i+2}$ interaction
the problem comes from transverse field Ising model, with an extra 3-spin interaction term
$$H=H_0+H_1+H_2=-h\sum_{i=1}^{N}X_i -\lambda_1 \sum_{i=1}^{N-1}Z_i Z_{i+1}-\lambda_2 \sum_{i=1}^{N-2}Z_i X_{i+...
- 1,113
1
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0
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54
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How to compute the MPS representation for a sequence of asymptotically gapped quantum spin chains
Suppose I have a sequence of gapped, spin-$1/2$, translationally invariant quantum spin chains $\{H_1, H_2,H_3\cdots\}$ with interactions of range $\leq 2$ (i.e. no further than nearest-neighbors).
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