Half-chain entanglement entropy in the one-dimensional spinless fermion model

We calculate the half-chain entanglement entropy of the ground state in the one-dimensional spinless fermion model. Considering a tiny corner of the Hilbert space represented by matrix product states, we efficiently find the ground state by using infinite time-evolving block decimation. The Schmidt...

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Bibliographic Details
Published in:Journal of the Korean Physical Society 2016, 69(12), , pp.1781-1786
Main Author: Chung, Myung-Hoon
Format: Article
Language:English
Subjects:
Chain entanglement
Chains
Entanglement
Entropy
Ground state
Helium
Hilbert space
Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Theoretical
물리학
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Summary:We calculate the half-chain entanglement entropy of the ground state in the one-dimensional spinless fermion model. Considering a tiny corner of the Hilbert space represented by matrix product states, we efficiently find the ground state by using infinite time-evolving block decimation. The Schmidt coefficients are used to determine the half-chain entanglement entropy. Using the bond dimension scaling of the half-chain entanglement entropy, we find the critical region, which is consistent with the previous results.
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.69.1781