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Universal Order Parameters and Quantum Phase Transitions: A Finite-Size Approach
We propose a method to construct universal order parameters for quantum phase transitions in many-body lattice systems. The method exploits the H-orthogonality of a few near-degenerate lowest states of the Hamiltonian describing a given finite-size system, which makes it possible to perform finite-s...
Shranjeno v:
| izdano v: | Sci Rep |
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| Main Authors: | , , |
| Format: | Artigo |
| Jezik: | Inglês |
| Izdano: |
Nature Publishing Group
2015
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| Teme: | |
| Online dostop: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4286789/ https://ncbi.nlm.nih.gov/pubmed/25567585 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/srep07673 |
| Oznake: |
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