Negative energy enhancement in layered holographic conformal field theories
arXiv:2103.14046 · doi:10.1007/JHEP08(2021)037
Abstract
Using a holographic model, we study quantum field theories with a layer of one CFT surrounded by another CFT, on either a periodic or an infinite direction. We study the vacuum energy density in each CFT as a function of the central charges, the thickness of the layer(s), and the properties of the interfaces between the CFTs. The dual spacetimes in the holographic model include two regions separated by a dynamical interface with some tension. For two or more spatial dimensions, we find that a layer of CFT with more degrees of freedom than the surrounding one can have an anomalously large negative vacuum energy density for certain types of interfaces. The negative energy density (or null-energy density in the direction perpendicular to the interface) becomes arbitrarily large for fixed layer width when the tension of the bulk interface approaches a lower critical value. We argue that in cases where we have large negative energy density, we also have an anomalously high transition temperature to the high-temperature thermal state.
arXiv comment1+27 pages, 10 figures, minor comments added to discussion in this version
References in corpus (26)
- Holographic Reconstruction of Spacetime and Renormalization in the AdS/CFT Correspondence
- New Developments in the Casimir Effect
- On Renormalization Group Flows in Four Dimensions
- Holographic Dual of BCFT
- Towards the F-Theorem: N=2 Field Theories on the Three-Sphere
- The AdS/CFT Correspondence and a New Positive Energy Conjecture for General Relativity
- On the RG running of the entanglement entropy of a circle
- Aspects of AdS/BCFT
- Exact half-BPS Type IIB interface solutions I: Local solution and supersymmetric Janus
- F-Theorem without Supersymmetry
- Exact half-BPS Type IIB interface solutions II: Flux solutions and multi-Janus
- Holographic Duals of D=3 N=4 Superconformal Field Theories
- Codimension two holography for wedges
- Central Charges for BCFTs and Holography
- Holographic Calculation of Boundary Entropy
- Towards a -theorem in defect CFT
- On Holographic Defect Entropy
- Near-horizon solutions for D3-branes ending on 5-branes
- Bending branes for DCFT in two dimensions
- Energy Reflection and Transmission at 2D Holographic Interfaces
- Holo-ween
- Holographic RG Flow on the Defect and g-Theorem
- Holographic duals of Boundary CFTs
- Phases of Holographic Interfaces
- Simple holographic duals to boundary CFTs
- Bag-of-gold spacetimes, Euclidean wormholes, and inflation from domain walls in AdS/CFT