Asymptotic safety, quantum gravity, and the swampland: a conceptual assessment

Abstract

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, asymptotically safe quantum gravity may provide a simple and predictive framework, thanks to a finite number of relevant parameters. On the other hand, a (sub-)set of intertwined swampland conjectures on the consistency of quantum gravity can be argued to be universal via effective field theory considerations. We answer whether some foundational features of these frameworks are compatible. This involves revisiting and refining several arguments (and loopholes) concerning the relation between field-theoretic descriptions of gravity and general swampland ideas. We identify the thermodynamics of black holes, spacetime topology change, and holography as the core aspects of this relation. We draw lessons on the features that a field theoretic description of gravity must (not) have to be consistent with fundamental principles underlying the swampland program, and on the universality of the latter.

48 pages, V2: references added, V3: some minor clarifications added

References in corpus (188)

• Generalized Global Symmetries
• On the Geometry of the String Landscape and the Swampland
• Symmetries and Strings in Field Theory and Gravity
• The Swampland: Introduction and Review
• The String Landscape and the Swampland
• Lectures on the Swampland Program in String Compactifications
• Fixed Points of Higher Derivative Gravity
• Black Hole Bound on the Number of Species and Quantum Gravity at LHC
• Ultraviolet properties of f(R)-Gravity
• Asymptotically Safe Lorentzian Gravity
• Non-Invertible Global Symmetries and Completeness of the Spectrum
• Symmetry Protected Topological Phases, Anomalies, and Cobordisms: Beyond Group Cohomology
• Global aspects of the space of 6D N = 1 supergravities
• The Weak Gravity Conjecture: A Review
• Infrared Divergences in QED, Revisited
• Observables, gravitational dressing, and obstructions to locality and subsystems
• Top mass from asymptotic safety
• Search of scaling solutions in scalar-tensor gravity
• En route to Background Independence: Broken split-symmetry, and how to restore it with bi-metric average actions
• Black Hole Formation and Classicalization in Ultra-Planckian 2 -> N Scattering
• Causality constraints on corrections to Einstein gravity
• Where is String Theory?
• Quantum gravity and Standard-Model-like fermions
• The Universal RG Machine
• Generalized Symmetry Breaking Scales and Weak Gravity Conjectures
• Solving 3d Gravity with Virasoro TQFT
• Extremal Kerr black holes as amplifiers of new physics
• The Virasoro Minimal String
• 8d Supergravity, Reconstruction of Internal Geometry and the Swampland
• High-energy gravitational scattering and black hole resonances
• Finiteness and the Swampland
• What's Done Cannot Be Undone: TASI Lectures on Non-Invertible Symmetries
• Cobordism Classes and the Swampland
• Holography and the KKLT Scenario
• Asymptotic solutions in asymptotic safety
• Compactness of Brane Moduli and the String Lamppost Principle in $d>6$
• Essential Quantum Einstein Gravity
• A pedagogical explanation for the non-renormalizability of gravity
• A Bound on Massive Higher Spin Particles
• Asymptotic Safety, Emergence and Minimal Length
• von Neumann algebras in JT gravity
• Bulk reconstruction and the Hartle-Hawking wavefunction
• Introduction to Generalized Global Symmetries in QFT and Particle Physics
• Dynamical Cobordism of a Domain Wall and its Companion Defect 7-brane
• The Asymptotically Safe Standard Model: From quantum gravity to dynamical chiral symmetry breaking
• On the Holographic Dual of a Topological Symmetry Operator
• Veneziano Variations: How Unique are String Amplitudes?
• Dynamical Cobordism Conjecture: Solutions for End-of-the-World Branes
• Asymptotic Safety: Swampland or Wonderland?
• Scalar-Tensor theories within Asymptotic Safety
• On Higher-Spin Points and Infinite Distances in Conformal Manifolds
• Generalized Veneziano and Virasoro amplitudes
• Minimal Black Holes and Species Thermodynamics
• Shedding black hole light on the emergent string conjecture
• Stringy Dynamics from an Amplitudes Bootstrap
• String Tension between de Sitter vacua and Curvature Corrections
• Statistics of String vacua
• The Stringy S-matrix Bootstrap: Maximal Spin and Superpolynomial Softness
• Bespoke Dual Resonance
• Lectures on the string landscape and the Swampland
• Naturally small Yukawa couplings from trans-Planckian asymptotic safety
• Weak gravity versus scale separation
• Where is M-theory in the space of scattering amplitudes?
• Black Holes in Asymptotically Safe Gravity
• Multiparticle Factorization and the Rigidity of String Theory
• The weak-gravity bound in asymptotically safe gravity-gauge systems
• Swampland Constraints on Neutrino Masses
• Estimating global charge violating amplitudes from wormholes
• Asymptotic freedom and safety in quantum gravity
• A universal formula for the density of states in theories with finite-group symmetry
• AQFT from n-functorial QFT
• Pure Supersymmetric AdS and the Swampland
• Properties of infinite product amplitudes: Veneziano, Virasoro, and Coon
• Functional Renormalisation for $f(R_{\mu \nu \rho \sigma })$ Quantum Gravity
• Algebras and States in JT Gravity
• On the Origin of Species Thermodynamics and the Black Hole - Tower Correspondence
• Species scale, worldsheet CFTs and emergent geometry
• ICTP Lectures on (Non-)Invertible Generalized Symmetries
• Quantum Gravity Bounds on N=1 Effective Theories in Four Dimensions
• Small Black Hole Explosions
• A universal formula for the density of states with continuous symmetry
• A microscopic realization of dS${}_3$
• Are tiny gauge couplings out of the Swampland?
• Bootstrap Principle for the Spectrum and Scattering of Strings
• Newtonian Binding from Lattice Quantum Gravity
• Lorentzian quantum gravity and the graviton spectral function
• Quantum gravity constraints on scale separation and de Sitter in five dimensions
• Finiteness for self-dual classes in integral variations of Hodge structure
• The complex Liouville string: the matrix integral
• Gravitational Solitons and Completeness
• The complex Liouville string: the worldsheet
• Finiteness and the Emergence of Dualities
• Accelerating cosmology from $\Lambda <0$ gravitational effective field theory
• Towards a complete classification of 6D supergravities
• Cobordism Conjecture in AdS
• Proving the Weak Gravity Conjecture in Perturbative String Theory, Part I: The Bosonic String
• Visions in Quantum Gravity
• Reconstructing the graviton
• Gravity-Induced Photon Interactions and Infrared Consistency in any Dimensions
• Lectures on Generalized Symmetries
• Infinite Distances and Factorization
• Snowmass White Paper: S-matrix Bootstrap
• Anomalies and the Green-Schwarz Mechanism
• The complex Liouville string
• On the Species Scale, Modular Invariance and the Gravitational EFT expansion
• A non-local way around the no-global-symmetries conjecture in quantum gravity?
• Algebras, Regions, and Observers
• Shift-symmetric Horndeski gravity in the asymptotic-safety paradigm
• $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}$ in the Asymptotically Safe Standard Model
• The complex Liouville string: worldsheet boundaries and non-perturbative effects
• Is Lattice Quantum Gravity Asymptotically Safe? Making contact between Causal Dynamical Triangulations and the Functional Renormalization Group
• Infinite distances in multicritical CFTs and higher-spin holography
• The complex Liouville string: the gravitational path integral
• Symmetry Operators and Gravity
• Finite Landscape of 6d N=(1,0) Supergravity
• On Upper Bounds in Dimension Gaps of CFT's
• A new infinite class of $6d$, $\mathcal{N}=(1,0)$ supergravities
• EFT & Species Scale: Friends or foes?
• Emergent Strings, Duality and Weak Coupling Limits for Two-Form Fields
• Density of States, Black Holes and the Emergent String Conjecture
• Lectures in Quantum Gravity
• Universal Bounds on CFT Distance Conjecture
• High energy scattering and string/black hole transition
• Matching the Vilkovisky-DeWitt Effective Action of Quantum Gravity to String Theory
• Black hole entropy and moduli-dependent species scale
• Form Factors in Asymptotically Safe Quantum Gravity
• Asymptotic safety of gravity with matter
• Towards a Higgs mass determination in asymptotically safe gravity with a dark portal
• Simons Lectures on Categorical Symmetries
• The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
• Quantum Gravity and Random Tensors
• Species Scale in Diverse Dimensions
• On 'categories' of quantum field theories
• Application of positivity bounds in asymptotically safe gravity
• Entropy Bounds and the Species Scale Distance Conjecture
• TASI Lectures on Holographic Space-Time, SUSY and Gravitational Effective Field Theory
• On Convexity of Charged Operators in CFTs and the Weak Gravity Conjecture
• Topology change and non-geometry at infinite distance
• The Functional Renormalization Group in Quantum Gravity
• On the Fate of Stringy Non-Invertible Symmetries
• Species Entropy and Thermodynamics
• Emergent strings at infinite distance with broken supersymmetry
• Microscopic origin of the entropy of black holes in general relativity
• Asymptotic safety meets tensor field theory: towards a new class of gravity-matter systems
• "Observables" in de Sitter Quantum Gravity: in Perturbation Theory and Beyond
• Holography and Localization of Information in Quantum Gravity
• A Background Independent Algebra in Quantum Gravity
• A note on background independence in ${\text{AdS}}_3$ string theory
• Finiteness Theorems and Counting Conjectures for the Flux Landscape
• Deformations of Extremal Black Holes and the UV
• Causality, unitarity and stability in quantum gravity: a non-perturbative perspective
• Holographic origin of TCC and the Distance Conjecture
• The Quantum Gravity Scale and the Swampland
• The Absolute Swampland
• Unearthing the intersections: positivity bounds, weak gravity conjecture, and asymptotic safety landscapes from photon-graviton flows
• Robustness of the derivative expansion in Asymptotic Safety
• Anomaly constraints for heterotic strings and supergravity in six dimensions
• Quantum Gravity from dynamical metric fluctuations
• Quantum gravity and scale symmetry in cosmology
• Perturbative approaches to non-perturbative quantum gravity
• The functional $f(R)$ approximation
• On harvesting physical predictions from asymptotically safe quantum field theories
• Lattice Quantum Gravity: EDT and CDT
• The Double EFT Expansion in Quantum Gravity
• Microscopic Origin of the Entropy of Single-sided Black Holes
• Domain walls and distances in discrete landscapes
• Algebras and states in super-JT gravity
• On the assumptions leading to the information loss paradox
• IR and UV limits of CDT and their relations to FRG
• Goldstone Bosons and Convexity
• Bubbles of cosmology in AdS/CFT
• Non-BPS path to the string lamppost
• Supergravity EFTs and swampland constraints
• Generalized Symmetry in Dynamical Gravity
• Foliated asymptotically safe gravity in the fluctuation approach
• Hiding the extra dimensions: A review on scale separation in string theory
• String Universality in Six Dimensions
• Asymptotics of 5d Supergravity Theories and the Emergent String Conjecture
• ER = EPR is an operational theorem
• At the End of the World: Local Dynamical Cobordism
• Exotic supergravities and the Swampland
• Diverging black hole entropy from quantum infrared non-localities
• Aspects of Dynamical Cobordism in AdS/CFT
• Intersecting End of the World Branes
• End of The World brane networks for infinite distance limits in CY moduli space
• On the reconstruction problem in Quantum Gravity
• The derivative expansion in asymptotically safe quantum gravity: general setup and quartic order
• On Unitarity of Bespoke Amplitudes

Cited by in corpus (5)

• Visions in Quantum Gravity
• Effective geometrodynamics for renormalization-group improved black-hole spacetimes in spherical symmetry
• Lectures in Quantum Gravity
• All $2D$ generalised dilaton theories from $d\ge 4$ gravities
• Quantum dynamics and thermodynamics of a Minkowski-Minkowski wormhole