JT gravity from partial reduction and defect extremal surface

Deng, Feiyu; An, Yuting; Zhou, Yang

doi:10.1007/jhep02(2023)219

Cited by 14 publications

(5 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The realisation of JT gravity as coming from the dimensional reduction of a brane setup in AdS 3 was also recently pointed out in [46][47][48]. It is thus interesting to see that such a realisation seems to naturally arise in the context of the tensionless string theory on AdS 3 .…”

Section: Jhep05(2023)005mentioning

confidence: 71%

Classical geometry from the tensionless string

Knighton

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

Tensionless string theory on AdS3 × S3 × $$ \mathcal{M} $$ M is explored in the limit that the strings wind the asymptotic boundary a large number of times. Although the worldsheet is usually thought to be localised to the AdS boundary, we argue that the string can actually probe the bulk geometry in this limit. In particular, we show that correlation functions can be expressed in terms of a minimal-area worldsheet propagating in AdS3. We then relate the classical motion of the string to the twistor-like free field description of the tensionless worldsheet theory. Finally, we consider a particular dimensional reduction of AdS3 to AdS2, and show that the effective action of the worldsheet formally resembles the one-dimensional Schwarzian theory of JT gravity with conical defects.

show abstract

Section: Jhep05(2023)005mentioning

confidence: 71%

Classical geometry from the tensionless string

Knighton

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…See [33] for the similar solution, in our case embedding is r(z) whereas in [33], embedding is r(µ), µ being the angle. 18 See [58] for the discussion of complexity of de-Sitter spaces. 19 This can also be verified from the terms inside the open bracket of (4.50).…”

Section: Jhep03(2023)103mentioning

confidence: 99%

“…From equation (4.42), we can see that when r(z) = 0, 17 then A de−Sitter HM = 0,18 and hence area of Hartman-Maldacena surface is A…”

mentioning

confidence: 99%

Multiverse in Karch-Randall Braneworld

Yadav

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

In this paper, we propose a model based on wedge holography that can describe the multiverse. In wedge holography, we consider two gravitating baths, one of which has strong gravity and the other one has weak gravity. To describe a multiverse, we consider 2n Karch-Randall branes, and we propose that various d-dimensional universes are localized on these branes. These branes are embedded in (d + 1)-dimensional spacetime. The model is useful in obtaining the Page curve of black holes with multiple horizons and in the resolution of the “grandfather paradox”. We explicitly obtain the Page curves of eternal AdS black holes for n = 2 multiverse and Schwarzschild de-Sitter black hole with two horizons.

show abstract

“…It will be very interesting to consider other configurations of the Weyl transformation which result in different bulk cutoff branes where entanglement islands emerge. We can study the entanglement islands, EWCS and BPE in such scenarios, and compare with the other generalized configurations of AdS/BCFT, like the holographic BCFT with two boundaries [12], the wedge holography [110][111][112], and the bulk brane with perturbations [113][114][115].…”

Section: More On the Self-encoding Propertymentioning

confidence: 99%

Ownerless island and partial entanglement entropy in island phases

Basu,

Lin,

et al. 2023

SciPost Phys.

View full text Add to dashboard Cite

In the context of partial entanglement entropy (PEE), we study the entanglement structure of the island phases realized in several 2-dimensional holographic set-ups. From a pure quantum information perspective, the entanglement islands emerge from the self-encoding property of the system, which gives us new insights on the construction of the PEE and the physical interpretation of two-point functions of twist operators in island phases. With the contributions from the entanglement islands properly taken into account, we give a generalized prescription to construct PEE and balanced partial entanglement entropy (BPE). Here the ownerless island region, which lies inside the island \text{Is}(AB)Is(AB) of A\cup BA∪B but outside \text{Is}(A)\cup \text{Is}(B)Is(A)∪Is(B), plays a crucial role. Remarkably, we find that under different assignments for the ownerless island, we get different BPEs, which exactly correspond to different saddles of the entanglement wedge cross-section (EWCS) in the entanglement wedge of A\cup BA∪B. The assignments can be settled by choosing the one that minimizes the BPE. Furthermore, under this assignment we study the PEE and give a geometric picture for the PEE in holography, which is consistent with the geometric picture in the no-island phases.

show abstract

JT gravity from partial reduction and defect extremal surface

Cited by 14 publications

References 59 publications

Classical geometry from the tensionless string

Classical geometry from the tensionless string

Multiverse in Karch-Randall Braneworld

Ownerless island and partial entanglement entropy in island phases

Contact Info

Product

Resources

About