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Volumn 86, Issue 7, 2012, Pages

Matrix product states for critical spin chains: Finite-size versus finite-entanglement scaling

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Indexed keywords


EID: 84865066931     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.86.075117     Document Type: Article
Times cited : (182)

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    • E0final(N) is the energy of the MPS obtained as the ground state by our conjugate gradient search for the finite chain with N sites and PBC. E0initial(N) is the energy obtained by plugging the MPS resulting from imaginary time evolution of the infinite chain into the finite size geometry with PBC. As mentioned in the main text, this MPS is used as the starting point of the conjugate gradient search.
    • E 0 final (N) is the energy of the MPS obtained as the ground state by our conjugate gradient search for the finite chain with N sites and PBC. E 0 initial (N) is the energy obtained by plugging the MPS resulting from imaginary time evolution of the infinite chain into the finite size geometry with PBC. As mentioned in the main text, this MPS is used as the starting point of the conjugate gradient search.
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