40.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.9k papers
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923 papers · 1 filter
Positive Singularities and Volumes in Scattering Amplitudes
Elia Mazzucchelli
Recent advances have revealed that scattering amplitudes in certain quantum field theories admit a geometric formulation in terms of positive geometries. In this framework, amplitu…
Area Scaling of Dynamical Degrees of Freedom in Regularised Scalar Field Theory
Oliver Friedrich, Kristina Giesel, Varun Kushwaha
How many canonical degrees of freedom does a quantum field theory actually use during its Hamiltonian evolution? For a UV/IR-regularised classical scalar field, we address this que…
On Time-Evolution in Quantum Gravity
Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili
We derive an explicit BRST-exact operator identity for the bulk Hamiltonian in quantum gravity, working within a BRST-invariant quantization of General Relativity, treated as a low…
-meson from topological properties of the electroweak vacuum
Gia Dvali, Archil Kobakhidze, Otari Sakhelashvili
We further scrutinize the evidence for a recently suggested pseudo-scalar particle, the electroweak -meson. Its existence is demanded by matching the removal of the weak…
Similarities in the evaporation of saturated solitons and black holes
Giacomo Contri, Gia Dvali, Otari Sakhelashvili
It has been suggested some time ago that many black hole properties are not specific to gravity, but rather are shared by a large class of objects, the so-called saturons, that sat…
Numerical extraction of crosscap coefficients in microscopic models for (2+1)D conformal field theory
Jia-Ming Dong, Yueshui Zhang, Kai-Wen Huang +2
Conformal field theory (CFT) can be placed on disparate space-time manifolds to facilitate investigations of their properties. For (2+1)-dimensional [(2+1)D] theories, one useful c…
Bulk/boundary Modular Quintessence and DESI
Luis A. Anchordoqui, Ignatios Antoniadis, Niccolò Cribiori +4
The latest DESI DR2 results, when combined with other independent cosmological data on the Cosmic Microwave Background and supernovas, suggest a preference for dynamical dark energ…
Center Symmetry Breaking in Calabi--Yau Compactifications
Ivano Basile, Pouya Golmohammadi
It is widely believed that global symmetries must be broken in Quantum Gravity. This includes higher-form symmetries, which are commonplace in supergravity coupled to vector multip…
Singular Value Decomposition and Its Blind Spot for Quantum Chaos in Non-Hermitian Sachdev-Ye-Kitaev Models
Matteo Baggioli, Kyoung-Bum Huh, Hyun-Sik Jeong +3
The study of chaos and complexity in non-Hermitian quantum systems poses significant challenges due to the emergence of complex eigenvalues in their spectra. Recently, the singular…
Asymptotic safety, quantum gravity, and the swampland: a conceptual assessment
Ivano Basile, Benjamin Knorr, Alessia Platania +1
We provide a conceptual assessment of some aspects of fundamental quantum field theories of gravity in light of foundational aspects of the swampland program. On the one hand, asym…
Two Micron-Size Dark Dimensions
Luis Anchordoqui, Ignatios Antoniadis, Dieter Lust
Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In our paper we examine various observational bounds in scenarios w…
Visions in Quantum Gravity
Luca Buoninfante, Benjamin Knorr, K. Sravan Kumar +36
To deepen our understanding of Quantum Gravity and its connections with black holes and cosmology, building a common language and exchanging ideas across different approaches is cr…
Coherent States in Gauge Theories: Topological Defects and Other Classical Configurations
Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili
We present a formulation of coherent states as of consistent quantum description of classical configurations in the BRST-invariant quantization of electrodynamics. The quantization…
Quantum Theory, Gravity and Second Order Geometry
Folkert Kuipers
We argue that a consistent coupling of a quantum theory to gravity requires an extension of ordinary `first order' Riemannian geometry to second order Riemannian geometry, which in…
Consistent Canonical Quantization of Gravity: Recovery of Classical GR from BRST-invariant Coherent States
Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili
We perform canonical quantization of General Relativity, as an effective quantum field theory below the Planck scale, within the BRST-invariant framework. We show that the promotio…
A Stochastic Origin of Spacetime Non-Commutativity
Michele Arzano, Folkert Kuipers
We propose a stochastic interpretation of spacetime non-commutativity starting from the path integral formulation of quantum mechanical commutation relations. We discuss how the (n…
Matching the Vilkovisky-DeWitt Effective Action of Quantum Gravity to String Theory
Xavier Calmet, Elias Kiritsis, Folkert Kuipers +1
In this work, we discuss the matching of the Vilkovisky-DeWitt effective action of quantum gravity to an example of an ultra-violet complete theory of quantum gravity. We show how…
Foundations of ghost stability
Verónica Errasti Díez, Jordi Gaset Rifà, Georgina Staudt
We present a new method to analytically prove global stability in ghost-ridden dynamical systems. Our proposal encompasses all prior results and consequentially extends them. In pa…
Electroweak meson
Gia Dvali, Archil Kobakhidze, Otari Sakhelashvili
We argue that the Standard Model is accompanied by a new pseudo-scalar degree of freedom, -meson, which cancels the topological susceptibility of the electroweak vacuum…
Bulk Black Hole Dark Matter
Luis A. Anchordoqui, Ignatios Antoniadis, Dieter Lust +1
The dark dimension provides a mechanism to resolve the cosmological hierarchy problem and assembles a colosseum for dark matter contenders. In a series of recent publications we in…
Hint to Supersymmetry from GR Vacuum
Gia Dvali, Archil Kobakhidze, Otari Sakhelashvili
The -matrix formulation of gravity suggests that the -vacuum structure must not be sustained by the theory. We point out that, when applied to the vacuum of general relativit…
Species scale, worldsheet CFTs and emergent geometry
Christian Aoufia, Ivano Basile, Giorgio Leone
We study infinite-distance limits in the moduli space of perturbative string vacua. The remarkable interplay of string dualities seems to determine a highly non-trivial dichotomy,…
Scale invariance beyond criticality within the mean-field analysis of tensorial field theories
Roukaya Dekhil, Alexander F. Jercher, Daniele Oriti +1
We continue the series of articles on the application of Landau-Ginzburg mean-field theory to unveil the basic phase structure of tensorial field theories which are characterized b…
Emergence of -terms in M-theory
Ralph Blumenhagen, Niccolò Cribiori, Aleksandar Gligovic +1
It has been recently suggested that the strong Emergence Proposal is realized in M-theory limits by integrating out all light towers of states with a typical mass scale not larger…