Entanglement entropy saturates to finite constants set by virtual bond structure in fully and partially dimerized phases of frustrated spin chains, showing multiple values and multi-band features in the partially dimerized case.
Fully dimerized phase.Figure 8 shows the half-chain entropy of the FD phase under both boundary conditions
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Entanglement signature of fully and partially dimerized phases in frustrated spin chains
Entanglement entropy saturates to finite constants set by virtual bond structure in fully and partially dimerized phases of frustrated spin chains, showing multiple values and multi-band features in the partially dimerized case.