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19922026
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hep-th2026

Planck mass gravitinos in Einstein-Maxwell backgrounds

Artur Krawczyk, Krzysztof A. Meissner, Hermann Nicolai +1

Charged massive spin-3/2 fields have long been regarded as problematic, because their coupling to electromagnetism generically leads to loss of hyperbolicity, acausal propagation a…

hep-th2025★ 2 cited

Geometric realization of stress-tensor deformed field theory

Yun-Ze Li, Yunfei Xie, Song He

We present a semiclassical framework in which stress-tensor deformations of a quantum field theory (QFT) reorganize into a gravitational action evaluated at a metric saddle. The de…

hep-th2025★ 1 cited

Character of the highest weight module of BMS algebra realized on codimensional-two boundary

Bin Chen, Song He, Pujian Mao +1

In this paper, we investigate the highest weight representation (HWR) of the three and four-dimensional Bondi-Metzner-Sachs (BMS) algebra realized on the codimension-two boundary o…

hep-th2025★ 4 cited

Observables and Unconstrained Spin Tensor Dynamics in General Relativity from Scattering Amplitudes

Mark Alaverdian, Zvi Bern, Dimitrios Kosmopoulos +4

In a previous Letter, we showed that physical scattering observables for compact spinning objects in general relativity can depend on additional degrees of freedom in the spin tens…

hep-th2025★ 2 cited

From Modular Graph Forms to Iterated Integrals

Emiel Claasen, Mehregan Doroudiani

Modular graph forms are a class of non-holomorphic modular forms that arise in the low-energy expansion of genus-one closed string amplitudes. In this work, we introduce a systemat…

hep-th2025★ 12 cited

Radiation eikonal for post-Minkowskian observables

Jung-Wook Kim

A recent proposal reinterprets the eikonal as the scattering generator, which computes scattering observables through an action as a symmetry generator. The aim of this study is to…

hep-th2024★ 3 cited

Type II superstring amplitude at one-loop and transcendentality

Emiel Claasen, Mehregan Doroudiani

We calculate the four-graviton scattering amplitude in Type II superstring theory at one loop up to seventh order in the low-energy expansion through the recently developed iterate…

hep-th2024★ 72 cited

Emergence of Calabi-Yau manifolds in high-precision black hole scattering

Mathias Driesse, Gustav Uhre Jakobsen, Albrecht Klemm +5

Using the worldline quantum field theory formalism, we compute the radiation-reacted impulse, scattering angle, radiated energy and recoil of a classical black hole (or neutron sta…

hep-th2024★ 2 cited

Shear transport in far-from-equilibrium isotropization of supersymmetric Yang-Mills plasma

Shoucheng Wang, Song He, Li Li

We holographically study the far-from-equilibrium isotropization dynamics of the strongly coupled supersymmetric Yang-Mills plasma. The dual gravitational backgroun…

hep-th2024★ 7 cited

Holographic deformation of the entanglement entropy in (A)dS/CFT

Jing-Cheng Chang, Song He, Yu-Xiao Liu +1

In recent years, the holographic duality between -deformed conformal field theory (CFT) and Anti-de Sitter (AdS) spacetime with finite radial cutoff has received signific…

hep-th2024★ 7 cited

Torus reduction of maximal conformal supergravity

Franz Ciceri, Axel Kleinschmidt, Subrabalan Murugesan +1

We consider the dimensional reduction of N=(2,0) conformal supergravity in six dimensions on a two-torus to N=4 conformal supergravity in four dimensions. At the level of kinematic…

hep-th2024★ 19 cited

Massive twistor worldline in electromagnetic fields

Joon-Hwi Kim, Jung-Wook Kim, Sangmin Lee

We study the (ambi-)twistor model for spinning particles interacting via electromagnetic field, as a toy model for studying classical dynamics of gravitating bodies including effec…

hep-th2024★ 29 cited

Geometric formulation of generalized root- deformations

H. Babaei-Aghbolagh, Song He, Tommaso Morone +2

We develop a generic geometric formalism that incorporates both -like and root--like deformations in arbitrary dimensions. This framework applies to a wide fami…

hep-th2024★ 1 cited

Coupling of Branes and Twisted Self-Duality in the Maxwell-Chern-Simons Theory

Hannes Malcha

We study three approaches to electric-magnetic duality in the 4-dimensional Maxwell theory coupled to a dyonic point charge and in the 5-dimensional Maxwell-Chern-Simons (MCS) theo…

hep-th2024★ 1 cited

Detecting quantum chaos via pseudo-entropy

Song He, Pak Hang Chris Lau, Long Zhao

Quantum informatic quantities such as entanglement entropy are useful in detecting quantum phase transitions. Recently, a new entanglement measure called pseudo-entropy was propose…

hep-th2024★ 7 cited

Irrelevant and marginal deformed BMS field theories

Song He, Xin-Cheng Mao

In this study, we investigate various deformations within the framework of Bondi-van der Burg-Metzner-Sachs invariant field theory (BMSFT). Specifically, we explore the impact of B…

hep-th2023★ 3 cited

Integral of depth zero to three basis of Modular Graph Functions

Mehregan Doroudiani

Modular Graph Functions (MGFs) are SL(2,)-invariant functions that emerge in the study of the low-energy expansion of the one-loop closed string amplitude. To find the…

hep-th2023★ 5 cited

Systematic approach to correlators in deformed CFTs

Song He, Yuan Sun, Jiashi Yin

We investigate higher-order corrections to correlators in a general CFT (conformal field theory) with the double-trace deformation. Standard perturbation theory proves i…

hep-th2023★ 10 cited

Maximal D=2 supergravities from higher dimensions

Guillaume Bossard, Franz Ciceri, Gianluca Inverso +1

We develop in detail the general framework of consistent Kaluza-Klein truncations from D=11 and type II supergravities to gauged maximal supergravities in two dimensions. In partic…

hep-th2023★ 11 cited

A small Universe

Jean-Luc Lehners, Jerome Quintin

Many cosmological models assume or imply that the total size of the universe is very large, perhaps even infinite. Here we argue instead that the universe might be comparatively sm…

hep-th2023★ 22 cited

Island formula in Planck brane

Jing-Cheng Chang, Song He, Yu-Xiao Liu +1

Double holography offers a profound understanding of the island formula by describing a gravitational system on AdS coupled to a conformal field theory on ,…

hep-th2023★ 31 cited

Renormalizing Love: tidal effects at the third post-Newtonian order

Manoj K. Mandal, Pierpaolo Mastrolia, Hector O. Silva +2

We present the conservative effective two-body Hamiltonian at the third order in the post-Newtonian expansion with gravitoelectric quadrupolar dynamical tidal-interactions. Our der…

hep-th2023★ 2 cited

Loop corrections versus marginal deformation in celestial holography

Song He, Pujian Mao, Xin-Cheng Mao

Four-dimensional all-loop amplitudes in QED and gravity exhibit universal Infrared (IR) singularities with a factorization structure. This structure is governed by tree amplitudes…

hep-th2023★ 10 cited

Conformal anomalies in 6d 4-derivative theories: a heat-kernel analysis

Lorenzo Casarin

We compute the conformal anomalies for some higher-derivative (non-unitary) 6d Weyl invariant theories using the heat-kernel expansion in the background-field method. To this aim w…