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  • Journal article
    Mentasti G, Contaldi C, 2025,

    Cosmic shimmering: the gravitational wave signal of time-resolved cosmic shear observations

    , Journal of Cosmology and Astroparticle Physics, Vol: 2025, ISSN: 1475-7516

    We introduce a novel approach for detecting gravitational waves through their influence on the shape of resolved astronomical objects. This method, complementary to pulsar timing arrays and astrometric techniques, explores the time-dependent distortions caused by gravitational waves on the shapes of celestial bodies, such as galaxies or any resolved extended object. By developing a formalism based on that adopted in the analysis of weak lensing effects, we derive the response functions for gravitational wave-induced distortions and compute their angular correlation functions. Our results highlight the sensitivity of these distortions to the lowest frequencies of the gravitational wave spectrum and demonstrate how they produce distinct angular correlation signatures, including null and polarisation-sensitive correlations. These findings pave the way for future high-resolution surveys to exploit this novel observable, potentially offering new insights into the stochastic gravitational wave background and cosmological models.
  • Journal article
    Webb JK, Lee C-C, Milakovic D, Flambaum VV, Dzuba VA, Magueijo Jet al., 2025,

    Correction to: The mystery of alpha and the isotopes

    , Monthly Notices of the Royal Astronomical Society, Vol: 540, Pages: L13-L13, ISSN: 0035-8711
  • Journal article
    Beccaria M, Kurlyand SA, Tseytlin AA, 2025,

    On non-planar ABJM anomalous dimensions from M2 branes in AdS<sub>4</sub> x <i>S</i><SUP>7</SUP>/ℤ<sub><i>k</i></sub>

    , JOURNAL OF HIGH ENERGY PHYSICS
  • Journal article
    Chen CY-R, Joung E, Mkrtchyan K, Yoon Jet al., 2025,

    Higher-order chiral scalar from boundary reduction of 3d higher-spin gravity

    , JOURNAL OF HIGH ENERGY PHYSICS
  • Journal article
    Bassani PM, Magueijo J, 2025,

    How to make a universe

    , PHYSICAL REVIEW D, Vol: 111, ISSN: 2470-0010
  • Journal article
    Chester SM, Hansen T, Zhong D-L, 2025,

    The type IIA Virasoro-Shapiro amplitude in AdS<sub>4</sub> x CP<SUP>3</SUP> from ABJM theory

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
  • Journal article
    Garbrecht B, Ghoderao PS, Rajantie A, 2025,

    Curvature perturbations from vacuum transition during inflation

    , Journal of Cosmology and Astroparticle Physics, Vol: 2025, ISSN: 1475-7516

    We demonstrate that in the presence of a light scalar spectator field, vacuum transitions taking place during inflation can produce large, potentially detectable non-Gaussian signatures in the primordial curvature perturbation. Such transitions are common in theories with multiple scalar fields when the potential has several minima. Our computation proceeds by numerically finding the instanton solution that describes quantum tunnelling between vacuum states in a de Sitter background, calculating its dependence on the spectator field and, thereby, its effect on the expansion of space. For a scenario with Higgs inflation, we obtain the non-Gaussianity parameter fNL ∼ O(10) and study its parameter dependence.
  • Journal article
    Webb JK, Lee C-C, Milakovic D, Flambaum VV, Dzuba VA, Magueijo Jet al., 2025,

    The mystery of alpha and the isotopes

    , Monthly Notices of the Royal Astronomical Society, Vol: 539, Pages: L1-L6, ISSN: 0035-8711

    We report unbiased Artificial Intelligence (AI) measurements of the fine structure constant α in two proximate absorption regionsin the spectrum of the quasar HE0515−4414. The data are high resolution, high signal to noise, and laser frequency combcalibrated, obtained using the Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations (ESPRESSO)spectrograph on the VLT. The high quality of the data and proximity of the regions motivate a differential comparison, exploringthe possibility of spatial variations of fundamental constants, as predicted in some theories. We show that if the magnesiumisotopic relative abundances are terrestrial, the fine structure constants in these two systems differ at the 7σ level. A 3σdiscrepancy between the two measurements persists even for the extreme non-terrestrial case of 100 per cent 24Mg, if shared byboth systems. However, if Mg isotopic abundances take independent values in these two proximate systems, one terrestrial, theother with no heavy isotopes, both can be reconciled with a terrestrial α, and the discrepancy between the two measurementsfalls to 2σ. We cannot rule out other systematics that are unaccounted for in our study that could masquerade as a varyingalpha signal. We discuss varying constant and varying isotope interpretations and resolutions to this conundrum for future highprecision measurements.
  • Journal article
    Magueijo J, Manchanda GS, 2025,

    Quantum wormholes at spatial infinity

    , PHYSICS LETTERS B, Vol: 864, ISSN: 0370-2693
  • Journal article
    Beccaria M, Tseytlin AA, 2025,

    Non-planar corrections to ABJM Bremsstrahlung function from quantum M2 brane

    , JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, Vol: 58, ISSN: 1751-8113
  • Journal article
    Chester SM, Zhong D-L, 2025,

    AdS3 x S3 Virasoro-Shapiro Amplitude with Ramond-Ramond Flux

    , PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007
  • Journal article
    Hull C, Hutt ML, Lindstrom U, 2025,

    Generalised symmetries in linear gravity

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
  • Journal article
    Abdalla A, Abe M, Abend S, Abidi M, Aidelsburger M, Alibabaei A, Allard B, Antoniadis J, Arduini G, Augst N, Balamatsias P, Balaž A, Banks H, Barcklay RL, Barone M, Barsanti M, Bason MG, Bassi A, Bayle J-B, Baynham CFA, Beaufils Q, Beldjoudi S, Belić A, Bennetts S, Bernabeu J, Bertoldi A, Bigard C, Bigelow NP, Bingham R, Blas D, Bobrick A, Boehringer S, Bogojević A, Bongs K, Bortoletto D, Bouyer P, Brand C, Buchmueller O, Buica G, Calatroni S, Calmels L, Canizares P, Canuel B, Caramete A, Caramete L-I, Carlesso M, Carlton J, Carman SP, Carroll A, Casariego M, Chairetis M, Charmandaris V, Chauhan U, Chen J, Chiofalo MLM, Ciampini D, Cimbri A, Cladé P, Coleman J, Constantin FL, Contaldi CR, Corgier R, Dash B, Davies GJ, de Rham C, De Roeck A, Derr D, Dey S, Di Pumpo F, Djordjevic GS, Döbrich B, Dornan P, Doser M, Drougakis G, Dunningham J, Duspayev A, Easo S, Eby J, Efremov M, Elertas G, Ellis J, Entin N, Fairhurst S, Fanì M, Fassi F, Fayet P, Felea D, Feng J, Flack R, Foot C, Freegarde T, Fuchs E, Gaaloul N, Gao D, Gardner S, Garraway BM, GarridoAlzar CL, Gauguet A, Giese E, Gill P, Giudice GF, Glasbrenner EP, Glick J, Graham PW, Granados E, Griffin PF, Gué J, Guellati-Khelifa S, Gupta S, Gupta V, Hackermueller L, Haehnelt M, Hakulinen T, Hammerer K, Hanımeli ET, Harte T, Hartmann S, Hawkins L, Hees A, Herbst A, Hird TM, Hobson R, Hogan J, Holst B, Holynski M, Hosten O, Hsu CC, Huang WC-W, Hughes KM, Hussain K, Hütsi G, Iovino A, Isfan M-C, Janson G, Jeglič P, Jetzer P, Jiang Y, Juzeliūnas G, Kaenders W, Kalliokoski M, Kehagias A, Kilian E, Klempt C, Knight P, Koley S, Konrad B, Kovachy T, Krutzik M, Kumar M, Kumar P, Labiad H, Lan S-Y, Landragin A, Landsberg G, Langlois M, Lanigan B, Leone B, Le Poncin-Lafitte C, Lellouch S, Lewicki M, Lien Y-H, Lombriser L, Asamar EL, Lopez-Gonzalez JL, Lu C, Luciano GG, Lundblad N, de JLópezMonjaraz C, Lowe A, Mackoit-Sinkevičienė M, Maggiore M, Majumdar A, Makris K, Maleknejad A, Marchant AL, Mariotti A, Markou C, Matthews Bet al., 2025,

    Terrestrial Very-Long-Baseline Atom Interferometry: summary of the second workshop

    , EPJ Quantum Technology, Vol: 12, ISSN: 2196-0763

    This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial College, April 2024), building on the initial discussions during the inaugural workshop held at CERN in March 2023 (First Terrestrial Very-Long-Baseline Atom Interferometry Workshop, CERN, March 2023). Like the summary of the first workshop (Abend et al. in AVS Quantum Sci. 6:024701, 2024), this document records a critical milestone for the international atom interferometry community. It documents our concerted efforts to evaluate progress, address emerging challenges, and refine strategic directions for future large-scale atom interferometry projects. Our commitment to collaboration is manifested by the integration of diverse expertise and the coordination of international resources, all aimed at advancing the frontiers of atom interferometry physics and technology, as set out in a Memorandum of Understanding signed by over 50 institutions (Memorandum of Understanding for the Terrestrial Very Long Baseline Atom Interferometer Study).
  • Journal article
    Ho M, Price H, Evans T, OSullivan Eet al., 2025,

    Enhancing foresight models with network science: measuring innovation feedbacks within the Chain-Linked Model

    , Technological Forecasting and Social Change, Vol: 213, ISSN: 0040-1625

    A granular understanding of innovation dynamics is crucial for forecasting how and when different actors within the innovation system can make valuable contributions. Existing theoretical foundations of the foresight practice are largely qualitative and often oversimplify the innovation process. While foresight practitioners acknowledge the existence of knowledge feedback loops, these feedback loops are rarely quantified systematically in empirical forecasting studies. Innovators and funders tend to choose their dyadic relationships but rarely have visibility over the wider, dynamic innovation network. This study enriches innovation theories for the foresight practice by leveraging multilayer citation networks to explore innovation translation pathways, achieved by integrating data from market entries, clinical trials, patents, publications, funders, and grants over a 70-year period. Our analysis shows shifts in the order, prevalence, and tipping points of translation activities as technologies mature, with granularity not described in previous studies. We also examine the distinct funding patterns of major public and private entities throughout this maturation process, revealing their unique contributions and enriching sociotechnical explanations of innovation processes. This study improves the explainability of technology forecasting through innovation theories by reconstructing micro-technical innovation dynamics from first principles.
  • Journal article
    Hull C, 2025,

    Coupling self-dual <i>p</i>-form Gauge fields to self-dual branes

    , JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, Vol: 58, ISSN: 1751-8113
  • Journal article
    Akhond M, Arias-Tamargo G, Carta F, Grimminger JF, Hanany Aet al., 2025,

    On brane systems with O<SUP>+</SUP> planes-5d and 6d SCFTs

    , JOURNAL OF HIGH ENERGY PHYSICS
  • Journal article
    Costantino F, He Y-H, Heyes E, Hirst Eet al., 2025,

    Learning 3-manifold triangulations

    , Journal of Physics A: Mathematical and Theoretical, Vol: 58, Pages: 095201-095201, ISSN: 1751-8113

    <jats:title>Abstract</jats:title> <jats:p>Real 3-manifold triangulations can be uniquely represented by isomorphism signatures. Databases of these isomorphism signatures are generated for a variety of 3-manifolds and knot complements, using SnapPy and Regina, then these language-like inputs are used to train various machine learning architectures to differentiate the manifolds, as well as their Dehn surgeries, via their triangulations. Gradient saliency analysis then extracts key parts of this language-like encoding scheme from the trained models. The isomorphism signature databases are taken from the 3-manifolds’ Pachner graphs, which are also generated in bulk for some selected manifolds of focus and for the subset of the SnapPy orientable cusped census with <jats:inline-formula> <jats:tex-math/> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mo>&lt;</mml:mo> <mml:mn>8</mml:mn> </mml:mrow> </mml:math> </jats:inline-formula> initial tetrahedra. These Pachner graphs are further analysed through the lens of network science to identify new structure in the triangulation representation; in particular for the hyperbolic case, a relation between the length of the shortest geodesic (systole) and the size of the Pachner graph’s ball is observed.</jats:p>
  • Journal article
    Hull C, Lindstrom U, Hutt MLVC, 2025,

    Gauge-invariant charges of the dual graviton

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
  • Journal article
    Genolini PB, Gauntlett JP, Jiao Y, Luscher A, Sparks Jet al., 2025,

    Toric gravitational instantons in gauged supergravity

    , PHYSICAL REVIEW D, Vol: 111, ISSN: 2470-0010
  • Journal article
    Acharya B, Alexandre J, Benes P, Bergmann B, Bertolucci S, Bevan A, Brancaccio R, Branzas H, Burian P, Campbell M, Cecchini S, Cho YM, de Montigny M, De Roeck A, Ellis JR, Fairbairn M, Felea D, Frank M, Hays J, Hirt AM, Ho DL-J, Hung PQ, Janecek J, Kalliokoski M, Lacarrere DH, Leroy C, Levi G, Margiotta A, Maselek R, Maulik A, Mauri N, Mavromatos NE, Mieskolainen M, Millward L, Mitsou VA, Mukhopadhyay A, Musumeci E, Ostrovskiy I, Ouimet P-P, Papavassiliou J, Patrizii L, Pavalas GE, Pinfold JL, Popa LA, Popa V, Pozzato M, Pospisil S, Rajantie A, de Austri RR, Sahnoun Z, Sakellariadou M, Sakurai K, Sarkar S, Semenoff G, Shaa A, Sirri G, Sliwa K, Soluk R, Spurio M, Staelens M, Suk M, Tenti M, Togo V, Tuszynski JA, Upreti A, Vento V, Vives Oet al., 2025,

    Search for highly ionizing particles in pp collisions during LHC Run 2 using the full MoWSl detector

    , Physical Review Letters, Vol: 134, ISSN: 0031-9007

    This search for magnetic monopoles (MMs) and high electric charge objects (HECOs) with spins 0, 1=2,and 1, uses for the first time the full MoEDAL detector, exposed to 6.46 fb−1 proton-proton collisions at 13 TeV. The results are interpreted in terms of Drell-Yan and photon-fusion pair production. Mass limits on direct production of MMs of up to 10 Dirac magnetic charges and HECOs with electric charge in the range 10e to 400e, were achieved. The charge limits placed on MM and HECO production are currently the strongest in the world. MoEDAL is the only LHC experiment capable of being directly calibrated for highly ionizing particles using heavy ions and with a detector system dedicated to definitively measuring magnetic charge.
  • Journal article
    Franco S, Hanany A, He Y-H, Kazakopoulos Pet al., 2025,

    Duality walls, duality trees and fractional branes

    , INTERNATIONAL JOURNAL OF MODERN PHYSICS A, Vol: 40, ISSN: 0217-751X
  • Journal article
    Duff MJ, 2025,

    Montonen-Olive duality of gauged supergravity?

    , JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, Vol: 58, ISSN: 1751-8113
  • Journal article
    Chan AHH, Dunning J, Beck KB, Burke T, Chik HYJ, Dunleavy D, Evans T, Ferreira A, Fourie B, Griffith SC, Hillemann F, Schroeder Jet al., 2025,

    Animal social networks are robust to changing association definitions

    , BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, Vol: 79, ISSN: 0340-5443
  • Journal article
    Hull C, Hutt ML, Lindstroem U, 2025,

    Gauging generalised symmetries in linear gravity

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
  • Journal article
    Beccaria M, Casarin L, Tseytlin AA, 2025,

    Semiclassical quantization of M5 brane probes wrapped on AdS<sub>3</sub><i>x S</i><SUP>3</SUP> and defect anomalies

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
  • Journal article
    Chen CY-R, Margalit A, de Rham C, Tolley AJet al., 2025,

    Causality in the presence of stacked shockwaves

    , Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol: 111, ISSN: 1550-7998

    Relativistic causality constrains the 𝑆-matrix both through its analyticity, and by imposing lower bounds on the scattering time delay. These bounds are easiest to determine for spacetimes which admit either a timelike or null Killing vector. We revisit a class of pp-wave spacetimes and carefully determine the scattering time delay for arbitrary incoming states in the eikonal, semiclassical, and Born approximations. We apply this to the effective field theory of gravity in arbitrary dimensions. It is well-known that higher-dimension operators such as the Gauss-Bonnet term, when treated perturbatively at low energies, can appear to make both positive and negative contributions to the time delays of the background geometry. We show that even when multiple shockwaves are stacked, the corrections to the scattering time delay relative to the background are generically unresolvable within the regime of validity of the effective field theory so long as the Wilson coefficients are of order unity. Phrased the other way, this can be read as a bound on the Wilson coefficient from infrared causality which are consistent with positivity/bootstrap bounds.
  • Journal article
    Chen CY-R, de Rham C, Tolley AJ, 2025,

    Deformations of extremal black holes and the UV

    , Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol: 111, ISSN: 1550-7998

    It has recently been noted that deformations of extremal anti–de Sitter (AdS) black holes in four and higher dimensions are generically nonsmooth or singular on the horizon. Further, it was found that certain deformations of asymptotically flat extremal black holes are marginal, causing the nature of the horizon to be strongly sensitive to UV corrections—in particular, Wilson coefficients associated with consistent UV completions generically lead to worse behavior on the horizon. In this work, we extend the discussion of deformed horizons in the presence of UV corrections to extremal charged black holes in AdS, where we find a tower of marginal perturbations for different black hole masses. We argue that the apparent UV sensitivity of marginal modes is, in fact, a feature of the UV theory, which is correctly reproduced by the effective field theory (EFT), and illustrate this with explicit UV completions confirming the validity of the EFT. We demonstrate that the same holds for a scalar-Maxwell EFT with known UV completion. In the gravitational case, the sign of EFT corrections to marginal perturbations is generally connected with the signs implied by positivity bounds, with UV completions generically leading to worse behavior on the horizon. We conjecture that this result is more generic and use this to derive more general positivity bounds motivated by the weak gravity conjecture, which we illustrate with further evidence.
  • Journal article
    Ade PAR, Amiri M, Benton SJ, Bergman AS, Bihary R, Bock JJ, Bond JR, Bonetti JA, Bryan SA, Chiang HC, Contaldi CR, Doré O, Duivenvoorden AJ, Eriksen HK, Filippini JP, Fraisse AA, Freese K, Galloway M, Gambrel AE, Gandilo NN, Ganga K, Gourapura S, Gualtieri R, Gudmundsson JE, Halpern M, Hartley J, Hasselfield M, Hilton G, Holmes W, Hristov VV, Huang Z, Irwin KD, Jones WC, Karakci A, Kuo CL, Kermish ZD, Leung JS-Y, Li S, Mak DSY, Mason PV, Megerian K, Moncelsi L, Morford TA, Nagy JM, Netterfield CB, Nolta M, OBrient R, Osherson B, Padilla IL, Racine B, Rahlin AS, Reintsema C, Ruhl JE, Runyan MC, Ruud TM, Shariff JA, Shaw EC, Shiu C, Soler JD, Song X, Trangsrud A, Tucker C, Tucker RS, Turner AD, van der List JF, Weber AC, Wehus IK, Wiebe DV, Young EYet al., 2025,

    Analysis of polarized dust emission using data from the first flight of SPIDER

    , The Astrophysical Journal: an international review of astronomy and astronomical physics, Vol: 978, ISSN: 0004-637X

    Using data from the first flight of Spider and from the Planck High Frequency Instrument, we probe the properties of polarized emission from interstellar dust in the Spider observing region. Component-separation algorithms operating in both the spatial and harmonic domains are applied to probe their consistency and to quantify modeling errors associated with their assumptions. Analyses of diffuse Galactic dust emission spanning the full Spider region demonstrate (i) a spectral energy distribution that is broadly consistent with a modified-blackbody (MBB) model with a spectral index of βd = 1.45 ± 0.05 (1.47 ± 0.06) for E (B)-mode polarization, slightly lower than that reported by Planck for the full sky; (ii) an angular power spectrum broadly consistent with a power law; and (iii) no significant detection of line-of-sight polarization decorrelation. Tests of several modeling uncertainties find only a modest impact (∼10% in σr) on Spider’s sensitivity to the cosmological tensor-to-scalar ratio. The size of the Spider region further allows for a statistically meaningful analysis of the variation in foreground properties within it. Assuming a fixed dust temperature Td = 19.6 K, an analysis of two independent subregions of that field results in inferred values of βd = 1.52 ± 0.06 and βd = 1.09 ± 0.09, which are inconsistent at the 3.9σ level. Furthermore, a joint analysis of Spider and Planck 217 and 353 GHz data within one subregion is inconsistent with a simple MBB at more than 3σ, assuming a common morphology of polarized dust emission over the full range of frequencies. This evidence of variation may inform the component-separation approaches of future cosmic microwave background polarization experiments.
  • Journal article
    Berglund P, Butbaia G, He Y-H, Heyes E, Hirst E, Jejjala Vet al., 2025,

    Generating triangulations and fibrations with reinforcement learning

    , Physics Letters B, Vol: 860, Pages: 139158-139158, ISSN: 0370-2693
  • Journal article
    Albertini E, Kozuszek J, Wiseman T, 2024,

    Dynamics of dRGT ghost-free massive gravity in spherical symmetry

    , JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479

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