Tootfinder

One-loop determinants in AdS$_3$ supergravity with extended supersymmetry
Ilija Rakic, Lorenzo Toni
https://arxiv.org/abs/2508.15701 https://arxiv.org/pdf/…

One-loop determinants in AdS$_3$ supergravity with extended supersymmetry
We re-examine the computation of the one-loop partition function of Type II supergravity theory compactified on $AdS_3 \times \mathbf{S}^3 \times X$, where $X$ can be $K_3$, $T^4$ and $\mathbf{S}^3 \times \mathbf{S}^1$. These backgrounds preserve eight supercharges (four left and four right moving) and are known to be holographically dual to either small or large $N=(4,4)$ superconformal field theories. By extending well-established heat kernel techniques, we evaluate the one-loop determinants …

A Josephson wormhole in coupled superconducting Yukawa-SYK metals
Aravindh S. Shankar, Jasper Steenbergen, Stephan Plugge, Koenraad Schalm
https://arxiv.org/abs/2506.16907

A Josephson wormhole in coupled superconducting Yukawa-SYK metals
We show that two Yukawa-SYK models with a weak tunneling contact can have an exotic hybrid superconducting thermofield-double-like state that is holographically dual to a traversable wormhole connecting two black holes with charged scalar hair. The hybrid superconducting thermo-field-double/wormhole state is distinguishable by anomalous scaling of revival oscillations in the fermionic Green's function, but also in a unique Andreev-revival in the anomalous Green's function. The existence of this…

Decoding the string in terms of holographic quantum maps
Avik Chakraborty, Tanay Kibe, Mart\'in Molina, Ayan Mukhopadhyay, Hardik Vamshi
https://arxiv.org/abs/2509.13404 htt…

Decoding the string in terms of holographic quantum maps
It has recently been shown that the Nambu-Goto equation for a string emerges from the junction conditions in three-dimensional gravity. Holographically, gravitational junctions are dual to interfaces in conformal field theory. We demonstrate that each stringy mode of the junction corresponds to a universal $\mathcal{H}_{in}\rightarrow \mathcal{H}_{out}$ quantum map between in and out Hilbert spaces of excitations scattered at the interface, and also a universal $\mathcal{H}_{L}\rightarrow \math…

Bubbles in AdS
Agnese Bissi, Giulia Fardelli, Mohammad Reza Khansari
https://arxiv.org/abs/2509.13036 https://arxiv.org/pdf/2509.13036

Bubbles in AdS
We investigate loop corrections to the four-point function of identical scalar operators in a four-dimensional large $N$ conformal field theory, holographically dual to AdS with a quartic interaction. We focus on the universal part of the correlator that, at any order in $1/N$, is completely determined by tree-level data. We show how this contribution controls the part of the anomalous dimensions of double-trace operators, that exhibits a characteristic $\log \ell$ dependence at large spin $\el…

The Baby Universe is Fine and the CFT Knows It: On Holography for Closed Universes
Stefano Antonini, Pratik Rath, Martin Sasieta, Brian Swingle, Alejandro Vilar L\'opez
https://arxiv.org/abs/2507.10649

The Baby Universe is Fine and the CFT Knows It: On Holography for Closed Universes
Big bang/big crunch closed universes can be realized in AdS/CFT, even though they lack asymptotically AdS boundaries. With enough bulk entanglement, the bulk Hilbert space of a closed universe can be holographically encoded in the CFT. We clarify the relation of this encoding to observer-clone proposals and refute recent arguments about the breakdown of semiclassical physics in such spaces. In the limit of no bulk entanglement, the holographic encoding breaks down. The oft-cited one-dimensional…

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes
Elhoucine Hadden, J\"urgen Klepp, Martin Fally, Tobias Jenke, Joachim Kohlbrecher, Tomoko Shimada, Asako Narita, Juro Oshima, Yasuo Tomita
https://arxiv.org/abs/2507.00922

Holographic hyperbranched polymer nanocomposite grating with exceptionally large neutron scattering length density modulation amplitudes
Nanoparticle-polymer composite gratings incorporating ultrahigh-refractive-index hyperbranched polymers as organic nanoparticles have demonstrated exceptional light optical properties, yet their potential for neutron diffraction applications remains unexplored. We report on the neutron optical properties of a holographically structured hyperbranched-polymer-dispersed nanocomposite grating at a quasi-monochromatic neutron wavelength of 2 nm. We show that neutron diffraction measurements performe…

$AdS_3 \times S^3$ Virasoro-Shapiro amplitude with KK modes
Hongliang Jiang, De-liang Zhong
https://arxiv.org/abs/2508.06039 https://arxiv.org/pdf/2508.060…

$AdS_3 \times S^3$ Virasoro-Shapiro amplitude with KK modes
We study the first curvature correction to the string amplitude of four Kaluza--Klein (KK) modes on $AdS_3 \times S^3 \times M_4$, with $M_4=K3$ or $T^4$, in type IIB string theory, which is holographically dual to the four--point correlator $\langle \mathcal{O}_{p_1} \mathcal{O}_{p_2} \mathcal{O}_{p_3} \mathcal{O}_{p_4} \rangle$ of certain half--BPS operators in the boundary D1--D5 CFT. The result takes the form of an integral over the Riemann sphere, analogous to the flat-space Virasoro--Shap…

Radiation in Fluid/Gravity and the Flat Limit
Gabriel Arenas-Henriquez, Luca Ciambelli, Felipe Diaz, Weizhen Jia, David Rivera-Betancour
https://arxiv.org/abs/2508.01446 https:/…

Radiation in Fluid/Gravity and the Flat Limit
We explore asymptotically locally anti-de Sitter spacetimes exhibiting radiative behavior, employing null gauges that allow for a well-defined flat limit. The radiative content in the bulk is captured by the super-Poynting vector, which we reinterpret holographically in terms of fluid variables in the dual boundary theory. For algebraically special solutions, we uncover a close connection between bulk radiation and dissipative corrections in the boundary stress tensor, demonstrating a direct li…

The holographic $\TTbar$ deformation of the CFT$_2$ with gravitational anomalies
Debarshi Basu, Qiang Wen, Mingshuai Xu
https://arxiv.org/abs/2507.20292 https://

The holographic $\TTbar$ deformation of the CFT$_2$ with gravitational anomalies
We develop the holographic framework for the $\TTbar$ deformation of two-dimensional conformal field theories (CFT$_2$) with gravitational anomalies, characterized by unequal left and right central charges and holographically dual to topological massive gravity (TMG). Utilizing the mixed boundary condition prescription, we construct the deformed BTZ black hole geometry and derive the corresponding deformed energy spectrum, confirming that the universal flow equation remains valid despite the pr…