Abstract
- Received 24 February 2023
DOI:https://doi.org/10.1103/PhysRevLett.130.129902
© 2023 American Physical Society
Physics Subject Headings (PhySH)
Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology
Erratum: Quantifying and Controlling Entanglement in the Quantum Magnet [Phys. Rev. Lett. 127, 037201 (2021)]
Pontus Laurell, Allen Scheie, Chiron J. Mukherjee, Michael M. Koza, Mechtild Enderle, Zbigniew Tylczynski, Satoshi Okamoto, Radu Coldea, D. Alan Tennant, and Gonzalo Alvarez
Phys. Rev. Lett. 130, 129902 – Published 23 March 2023
Images
Figure 1
(a),(d),(g),(j) INS spectra for at four representative field strengths. (b),(e),(h),(k) Calculated spectra for the chain at matching fields, accounting for the experimental polarization factor. (c),(f),(i),(l) QFI integrand at . White dashed lines in (a),(b) bound the two-spinon continua. Throughout we designate the wave vector component along the chain in units of .
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(a) Entanglement entropy from DMRG as a function of . The vertical line indicates the factoring field, where (horizontal line). For there is a steep drop in entropy as the system enters a polarized phase with a nondegenerate ground state. Inset: EE near . (b) The approximate one () and two-tangles () reach a minimum at . (c) QFI from INS and DMRG . Above the horizontal dashed (dotted) line, QFI indicates the presence of at least bipartite (tripartite) entanglement. Below the dashed line QFI cannot be used to distinguish separable and entangled states. The PF-corrected INS line is obtained by scaling by the ratio between the two DMRG values.
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