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Adiabatic freezing of entanglement with insertion of defects in a one-dimensional Hubbard model
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PhysRevB_2018.Adiabatic freezing of entanglement with insertion of defects in one-dimensional Hubbard model.pdf | Published version | 317.37 kB | Adobe PDF | View/Open |
Title: | Adiabatic freezing of entanglement with insertion of defects in a one-dimensional Hubbard model |
Authors: | Das, S Roy, SS Dhar, HS Rakshit, D Sen(de), A Sen, U |
Item Type: | Journal Article |
Abstract: | We report on ground state phases of a doped one-dimensional Hubbard model, which for large onsite interactions is governed by the t − J Hamiltonian, where the extant entanglement is immutable under perturbative or sudden changes of system parameters, a phenomenon termed as adiabatic freezing. We observe that in the metallic Luttinger liquid phase of the model bipartite entanglement decays polynomially and is adiabatically frozen, in contrast to the variable, exponential decay in the phase-separation and superconducting spin-gap phases. Significantly, at low fixed electron densities, the spin-gap phase shows remarkable affinity to doped resonating valence bond gas, with multipartite entanglement frozen across all parameter space. We note that entanglement, in general, is sensitive to external perturbation, as observed in several systems, and hitherto, no such invariance or freezing behavior has been reported. |
Issue Date: | 13-Sep-2018 |
Date of Acceptance: | 1-Sep-2018 |
URI: | http://hdl.handle.net/10044/1/72889 |
DOI: | https://doi.org/10.1103/PhysRevB.98.125125 |
ISSN: | 1098-0121 |
Publisher: | American Physical Society |
Start Page: | 125125-1 |
End Page: | 125125-7 |
Journal / Book Title: | Physical review B: Condensed matter and materials physics |
Volume: | 98 |
Issue: | 12 |
Copyright Statement: | ©2018 American Physical Society. |
Keywords: | Science & Technology Technology Physical Sciences Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics MATRIX PRODUCT STATES SPIN-GAP PHASE RENORMALIZATION-GROUP SUDDEN-DEATH QUANTUM SEPARABILITY SEPARATION DYNAMICS DIAGRAM Science & Technology Technology Physical Sciences Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Materials Science Physics MATRIX PRODUCT STATES SPIN-GAP PHASE RENORMALIZATION-GROUP SUDDEN-DEATH QUANTUM SEPARABILITY SEPARATION DYNAMICS DIAGRAM quant-ph quant-ph cond-mat.quant-gas cond-mat.str-el |
Publication Status: | Published |
Article Number: | ARTN 125125 |
Online Publication Date: | 2018-09-13 |
Appears in Collections: | Quantum Optics and Laser Science Physics |