2019
DOI: 10.1088/1751-8121/ab3944
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Holographic duals of inhomogeneous systems: the rainbow chain and the sine-square deformation model

Abstract: A holographic dual description of inhomogeneous systems is discussed. Notably, finite temperature results for the entanglement entropy in both the rainbow chain and the SSD model are obtained holographically by choosing appropriate foliations of the BTZ spacetime. Other inhomogeneous theories are also discussed. The entanglement entropy results are verified numerically, indicating that a wide variety of inhomogeneous field theory phenomenology can be seen in different slicings of asymptotically AdS3 spacetimes… Show more

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Cited by 38 publications
(33 citation statements)
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“…Indeed the functional form of the stress tensor (5.19), as seen from the gravity perspective and Banados geometries matches the interpretation of a stress tensor computed in a CFT on a specific foliation of the bulk (i.e. the curvilinear cutoff advocated in [47]). Moreover, the appearance of the local temperature and explicit position dependence (5.20) further supports this fact in our example.…”
Section: Jhep01(2021)027supporting
confidence: 56%
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“…Indeed the functional form of the stress tensor (5.19), as seen from the gravity perspective and Banados geometries matches the interpretation of a stress tensor computed in a CFT on a specific foliation of the bulk (i.e. the curvilinear cutoff advocated in [47]). Moreover, the appearance of the local temperature and explicit position dependence (5.20) further supports this fact in our example.…”
Section: Jhep01(2021)027supporting
confidence: 56%
“…2 Despite its many nontrivial features, one can compute many quantities in the SSD model (and other inhomogeneous CFTs) rather easily, owing to the transformation properties of CFTs. One can use the transformation properties of holographic CFTs, for example, to compute the finite temperature entanglement entropy of an arbitrary interval [x 1 , x 2 ] in an SSD deformed CFT on an interval L [47]:…”
Section: Jhep01(2021)027mentioning
confidence: 99%
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“…In order to make analytical progress, we compensate for the lack of time and space translation symmetry by allowing ourselves access to the infinitely generated conformal symmetry group. Concretely, we study a driven conformal field theory (CFT), where the time-evolution operator alternates between a uniform (1 + 1)-dimensional CFT and one of its nonhomogeneous versions known as sine-square deformation (SSD) [17][18][19][20][21][22], first introduced in the context of lattice systems as an efficient way to suppress boundary effects [23][24][25][26][27][28]. This setup has been previously studied with a periodic Floquet drive, where it displays a rich phase diagram with both heating and nonheating phases [29][30][31].…”
Section: Introductionmentioning
confidence: 99%