Realistic Area-Law Bound on Entanglement from Exponentially Decaying Correlations
A remarkable feature of typical ground states of strongly correlated many-body systems is that the entanglement entropy is not an extensive quantity. In one dimension, there exists a proof that a finite correlation length sets a constant upper bound on the entanglement entropy, called the area law....
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| Format: | Article |
| Language: | English |
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American Physical Society
2018-07-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.8.031009 |