Universal information of critical quantum spin chains from wavefunction overlaps
Universal information of critical quantum spin chains from wavefunction overlaps
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Ithaca: Cornell University Library, arXiv.org
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English
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Ithaca: Cornell University Library, arXiv.org
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Given a critical quantum spin chain, we show how universal information about its quantum critical point can be extracted from wavefunction overlaps. More specifically, we consider overlap between low-energy eigenstates of the spin chain Hamiltonian with different boundary conditions, namely periodic boundary conditions and open boundary conditions....
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Universal information of critical quantum spin chains from wavefunction overlaps
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TN_cdi_proquest_journals_2508033143
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2508033143
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E-ISSN
2331-8422
DOI
10.48550/arxiv.2104.00103