The Swampland: Introduction and Review

Abstract

The Swampland program aims to distinguish effective theories which can be completed into quantum gravity in the ultraviolet from those which cannot. This article forms an introduction to the field, assuming only a knowledge of quantum field theory and general relativity. It also forms a comprehensive review, covering the range of ideas that are part of the field, from the Weak Gravity Conjecture, through compactifications of String Theory, to the de Sitter conjecture.

arXiv comment198 Pages, 40 figures. Invited review for Fortschritte der Physik. Partially based on lectures delivered at BUSSTEPP 2018 (Oxford), and lectures to be delivered at SIFTS 2019 (Madrid) and BUSSTEPP 2019 (Glasgow). v2: Fixed typos, added comments and references. v3. More references added and typos fixed

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• A proof of the weak gravity conjecture
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• Loop corrections to the antibrane potential
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• AdS-phobia, the WGC, the Standard Model and Supersymmetry
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• Tunneling in Axion Monodromy
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• On Super-Planckian Fields at Sub-Planckian Energies
• Laplacian spectrum on a nilmanifold, truncations and effective theories
• Unstoppable brane-flux decay of $\overline{\text{D6}}$ branes
• Discrete Gauge Groups in F-theory Models on Genus-One Fibered Calabi-Yau 4-folds without Section
• Rescuing Massive Photons from the Swampland
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• Type IIA Flux Vacua with Mobile D6-branes
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• Are tiny gauge couplings out of the Swampland?
• Field redefinitions and Kähler potential in string theory at 1-loop
• String Moduli Stabilization at the Conifold
• A swamp of non-SUSY vacua
• Spin-four N=7 W-Supergravity: S-fold and Double Copy Construction
• Isocurvature Perturbations of Dark Energy and Dark Matter from the Swampland Conjecture
• A Note on 4D Heterotic String Vacua, FI-terms and the Swampland
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• Higher derivative three-form gauge theories and their supersymmetric extension
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• Interferometry with Synthetic Gauge Fields
• Axion Experiments to Algebraic Geometry: Testing Quantum Gravity via the Weak Gravity Conjecture
• Extremal Tunneling and Anti-de Sitter Instantons
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• Refined swampland distance conjecture and exotic hybrid Calabi-Yaus
• The supersymmetric anti-D3-brane action in KKLT
• Approximate Symmetries and Gravity
• Taming the Landscape of Effective Theories
• Fitting string inflation to real cosmological data: the Fibre Inflation case
• The Dark Dimension in a Warped Throat
• Physics of Infinite Complex Structure Limits in eight Dimensions
• Weak gravity versus scale separation
• Sliding Naturalness: Cosmological Selection of the Weak Scale
• Relaxing the Higgs mass and its vacuum energy by living at the top of the potential
• Inflationary Dynamics and Swampland Criteria for Modified Gauss-Bonnet Gravity Compatible with GW170817
• Nothing really matters
• Swampland, Gradient Flow and Infinite Distance
• From infinite to infinitesimal: Using the Universe as a dataset to probe Casimir corrections to the vacuum energy from fields inhabiting the dark dimension
• Systematics of type IIB moduli stabilisation with odd axions
• Strengthening the TCC Bound on Inflationary Cosmology
• Cosmological tests of quintessence in quantum gravity
• On TCS $G_2$ manifolds and 4D Emergent Strings
• A Tip for Landscape Riders: Multi-Field Inflation Can Fulfill the Swampland Distance Conjecture
• (Quasi-) de Sitter solutions across dimensions and the TCC bound
• Duality and Supersymmetry Constraints on the Weak Gravity Conjecture
• The weak-gravity bound in asymptotically safe gravity-gauge systems
• The Asymptotic Weak Gravity Conjecture in M-theory
• Bulk Reconstruction in Moduli Space Holography
• Membrane Limits in Quantum Gravity
• Cosmological ${\alpha }^{\prime }$-corrections from the functional renormalization group
• Giant Vortices and the Regge Limit
• A Note on String Excitations and the Higuchi Bound
• Reissner-Nordström black holes surrounded by perfect fluid dark matter: testing the viability of weak gravity conjecture and weak cosmic censorship conjecture simultaneously
• Strong Cosmic Censorship in light of Weak Gravity Conjecture for Charged Black Holes
• Swampland Constraints on Neutrino Masses
• The Black Hole Weak Gravity Conjecture with Multiple Charges
• Systematics of Type IIA moduli stabilisation
• Relating the scalar weak gravity conjecture and the swampland distance conjecture for an accelerating universe
• Revisiting the Scalar Weak Gravity Conjecture
• de Sitter Space as a Glauber-Sudarshan State
• Geometric Flow Equations for Schwarzschild-AdS Space-time and Hawking-Page Phase Transition
• Dark Energy, Extra Dimensions, and the Swampland
• A New Spin on the Weak Gravity Conjecture
• Swampland Conjecture and Inflation Model from Brane Perspective
• Higher Derivative Supergravities in Diverse Dimensions
• Open-Closed Correspondence of K-theory and Cobordism
• Rapidly Descending Dark Energy and the End of Cosmic Expansion
• Weak Gravity Conjecture, Black Hole Entropy, and Modular Invariance
• Weak Gravity Conjecture Validation with Photon Spheres of Quantum Corrected AdS-Reissner-Nordstrom Black Holes in Kiselev Spacetime
• Elliptic K3 Surfaces at Infinite Complex Structure and their Refined Kulikov models
• Weak gravity versus de Sitter
• Three-dimensional flux vacua from IIB on co-calibrated G2 orientifolds
• String Defects, Supersymmetry and the Swampland
• Four-dimensional de Sitter space is a Glauber-Sudarshan state in string theory
• Tameness, Strings, and the Distance Conjecture
• Fuzzy Dark Matter and the Dark Dimension
• Weak Cosmic Censorship and Weak Gravity Conjectures in CFT Thermodynamics
• The unbearable lightness of charged gravitini
• On de Sitter Spacetime and String Theory
• Supersymmetry Breaking and Stability in String Vacua: brane dynamics, bubbles and the swampland
• Stringy Running Vacuum Model and current Tensions in Cosmology
• WGC and WCC for charged black holes with quintessence and cloud of strings
• More on the Weak Gravity Conjecture via Convexity of Charged Operators
• Macroscopic quantum tunneling: from quantum vortices to black holes and Universe
• Regular Black Hole Interior Spacetime Supported by Three-Form Field
• Moduli inflation from modular flavor symmetries
• Tachyonic de Sitter solutions of 10d type II supergravities
• Non-integer conformal dimensions for type IIA flux vacua
• Revisiting Dudas-Mourad compactifications
• Swampland Conditions for Higher Derivative Couplings from CFT
• Lorentz Symmetry Violation in Charged Black Hole Thermodynamics and Gravitational Lensing: Effects of the Kalb-Ramond Field
• A NUT Charge Weak Gravity Conjecture from Dimensional Reduction
• A Conjecture on the Minimal Size of Bound States
• On the Origin of Species Thermodynamics and the Black Hole - Tower Correspondence
• Fluxes, Vacua, and Tadpoles meet Landau-Ginzburg and Fermat
• Trans-Planckian Censorship and Inflation in Grand Unified Theories
• Accessibility Measure for Eternal Inflation: Dynamical Criticality and Higgs Metastability
• Inflation, Higher Spins and the Swampland
• Pair Production and Gravity as the Weakest Force
• Black Hole as a Quantum Field Configuration
• Primordial Black Holes and Gravitational Waves in Multi-Axion-Chern-Simons Inflation
• The dark dimension, the Swampland, and the origin of cosmic rays beyond the GZK barrier
• Precision axion physics with running axion couplings
• Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape
• Fermions and the Swampland
• On Asymptotic Dark Energy in String Theory
• Formation of Chiral Soliton Lattice
• Looking for structure in the cobordism conjecture
• Moduli-dependent KK towers and the swampland distance conjecture on the quintic Calabi-Yau manifold
• Swampland, Trans-Planckian Censorship and Fine-Tuning Problem for Inflation: Tunnelling Wavefunction to the Rescue
• Further refining Swampland Conjecture on inflation in general scalar-tensor theories of gravity
• 4d strings at strong coupling
• Exploring Non-perturbative Corrections in Thermodynamics of Static Dirty Black Holes
• Dimensional Reduction of Cobordism and K-theory
• Alleviating Cosmological Tensions with a Coupled Scalar Fields Model
• The Stochastic Axiverse
• A dS obstruction and its phenomenological consequences
• New class of generalized coupling theories
• Cosmological Trans-Planckian Conjectures are not Effective
• The Standard Model from String Theory: What Have We Learned?
• Negative scalar potentials and the swampland: an Anti-Trans-Planckian Censorship Conjecture
• Spin-2 and the Weak Gravity Conjecture
• The Weak Scale from Weak Gravity
• The entropic quasi-de Sitter instability time from the distance conjecture
• Thermal Dark Energy
• Transplanckian Censorship and the Local Swampland Distance Conjecture
• Spectrum of Cuscuton Bounce
• String Regge trajectory in de Sitter space and implications for inflation
• Role of trans-Planckian modes in cosmology
• RG-Induced Modulus Stabilization: Perturbative de Sitter Vacua and Improved $D3$-$\overline{D3}$ Inflation
• Stabilising all Kähler moduli in perturbative LVS
• The Weak Gravity Conjecture Requires the Existence of Exotic AdS Black Holes
• New Early Dark Energy as a solution to the $H_0$ and $S_8$ tensions
• A refined trans-Planckian censorship conjecture
• Minimal Supergravity Inflation without Slow Gravitino
• Axion wormholes with massive dilaton
• Non-Standard Cosmological Models and the trans-Planckian Censorship Conjecture
• Exact black holes in string-inspired Euler-Heisenberg theory
• Crisis on Infinite Earths: Short-lived de Sitter Vacua in the String Theory Landscape
• On Codimension-one Vacua and String Theory
• Finite energy sum rules for gravitational Regge amplitudes
• Corrections to Extremal Black Holes from Iyer-Wald Formalism
• Effective Theories as Truncated Trans-Series and Scale Separated Compactifications
• Rigid nongeometric orientifolds and the swampland
• Inflation in $F(R)$ gravity models revisited after ACT
• Higher derivative corrections to black brane thermodynamics and the weak gravity conjecture
• Fermionic Higher-form Symmetries
• Page curve and symmetries
• Swampland Conjectures and Infinite Flop Chains
• Approximate symmetries and quantum error correction
• The discrete Green-Schwarz mechanism in 6D F-Theory and Elliptic Genera of Non-Critical Strings
• U(1) mixing and the Weak Gravity Conjecture
• Is Trans-Planckian Censorship a Swampland Conjecture?
• Mass Hierarchies and Quantum Gravity Constraints in DKMM-refined KKLT
• Modular Curves and Mordell-Weil Torsion in F-theory
• Topological Eternal Hilltop Inflation and the Swampland Criteria
• Non-minimal Elliptic Threefolds at Infinite Distance I: Log Calabi-Yau Resolutions
• Completely Dark Matter from Rapid-Turn Multifield Inflation
• The Black Hole Entropy Distance Conjecture and Black Hole Evaporation
• Quasi-Jacobi Forms, Elliptic Genera and Strings in Four Dimensions
• Cosmological dynamics of multifield dark energy
• BIonic membranes and AdS instabilities
• Closed Strings and Weak Gravity from Higher-Spin Causality
• Note on de Sitter vacua from perturbative and non-perturbative dynamics in type IIB/F-theory compactifications
• Quantum gravity constraints on scale separation and de Sitter in five dimensions
• Moduli spaces of Calabi-Yau $d$-folds as gravitational-chiral instantons
• $T$-dualizing the de-Sitter no-go scenarios
• On (Scalar QED) Gravitational Positivity Bounds
• High-Quality Axions from Higher-Form Symmetries in Extra Dimensions
• Sharpening the Boundaries Between Flux Landscape and Swampland by Tadpole Charge
• Moduli stabilization with non-geometric fluxes -- comments on tadpole contributions and de-Sitter vacua
• Dark bubbles and black holes
• Causality and quasi-normal modes in the GREFT
• ${\alpha }^{\prime }$-corrections and their double formulation
• Exact quantum conformal symmetry, its spontaneous breakdown, and gravitational Weyl anomaly
• Thermodynamic interpretation of the de Sitter swampland conjecture
• Dark energy, Ricci-nonflat spaces, and the Swampland
• On Measuring Distances in the Quantum Gravity Landscape
• Reconstructing k-essence: Unifying the attractor $n_S(N)$ and the swampland criteria
• Inflation, Swampland, and Landscape
• Gauge and gravitational instantons: From 3-forms and fermions to Weak Gravity and flat axion potentials
• Charge completeness and the massless charge lattice in F-theory models of supergravity
• A higher-dimensional view on quantum cosmology
• Testing scale-invariant inflation against cosmological data
• Perturbative unitarity in quasi-single field inflation
• Geometry of orientifold vacua and supersymmetry breaking
• Fibre inflation and precision CMB data
• Self-Binding Energies in AdS
• Type IIB flux compactifications with $h^{1,1}=0$
• Constraints on discrete global symmetries in quantum gravity
• Kinetically Coupled Scalar Fields Model and Cosmological Tensions
• Does the Cosmological Constant really indicate the existence of a Dark Dimension?
• Torsion at different scales: from materials to the Universe
• Non-minimal Elliptic Threefolds at Infinite Distance II: Asymptotic Physics
• Further Refining Swampland dS Conjecture in Mimetic f(G) Gravity
• Towards a complete mass spectrum of type-IIB flux vacua at large complex structure
• The Swampland and Screened Modified Gravity
• Convexity of Charged Operators in CFTs with Multiple Abelian Symmetries
• Bubble needs strings
• Bootstrap bound on extremal Reissner-Nordström black hole in AdS
• On the TransPlanckian Censorship Conjecture in Holographic Cosmology
• de Sitter Conjectures in N=1 Supergravity
• Model Independent Analysis of Supernova Data, Dark Energy, Trans-Planckian Censorship and the Swampland
• Remarks on the effects of quantum corrections on moduli stabilization and de Sitter vacua in type IIB string theory
• Emergence of $R^4$-terms in M-theory
• Negative Corrections to Black Hole Entropy from String Theory
• Swampland Bounds on Dark Sectors
• Modular Curves and the Refined Distance Conjecture
• Does the fraction of dark matter diminish with early dark energy?
• Rescaled Einstein-Hilbert Gravity: Inflation and the Swampland Criteria
• Classical de Sitter solutions in three dimensions without tachyons?
• Cosmic Textures and Global Monopoles as Seeds for Super-Massive Black Holes
• Neutrino charge constraints from scattering to the weak gravity conjecture to neutron stars
• Composite Inflation and further refining dS swampland conjecture
• Holographic Perspectives On Models Of Moduli Stabilization In M-Theory
• New Fayet-Iliopoulos terms in $\mathcal{N}=2$ supergravity
• Two Micron-Size Dark Dimensions
• Cosmic Censorship for AdS${}_5$-Kerr
• Curing with hemlock: escaping the swampland using instabilities from string theory
• Proving the Weak Gravity Conjecture in Perturbative String Theory, Part I: The Bosonic String
• Automatic Enhancement in 6D Supergravity and F-theory Models
• Consistent Kaluza-Klein truncations and two-dimensional gauged supergravity
• Holographic Consistency and the Sign of the Gauss-Bonnet Parameter
• Black Hole Extremality in Nonlinear Electrodynamics: A Lesson for Weak Gravity and Festina Lente Bounds
• A counterexample to the CFT convexity conjecture
• Conifold dynamics and axion monodromies
• Multi-field cold and warm inflation and the de Sitter swampland conjectures
• Probing the Dark Dimension with Auger data
• A stringy perspective on the coincidence problem
• On ${\alpha }^{\prime }$-effects from $D$-branes in $4d\mathcal{N}=1$
• Light Strings and Strong Coupling in F-theory
• Catalytic Creation of Baby Bubble Universe with Small Positive Cosmological Constant
• Towards a complete classification of 6D supergravities
• Weak cosmic censorship with self-interacting scalar and bound on charge to mass ratio
• Creating Spatial Flatness by Combining String Gas Cosmology and Power Law Inflation
• Massive AdS Supergravitons and Holography
• New instabilities for non-supersymmetric AdS${}_4$ orientifold vacua
• Visions in Quantum Gravity
• Swampland Criteria and Constraints on Inflation in a $f(R,T)$ Gravity Theory
• (Slow-)Twisting inflationary attractors
• Confinement in de Sitter Space and the Swampland
• Phenomenological implications on a hidden sector from the Festina Lente bound
• The rise of the primordial tensor spectrum from an early scalar-tensor epoch
• On stable type IIA de-Sitter vacua with geometric flux
• Contracting Cosmologies and the Swampland
• Swampland geometry and the gauge couplings
• De Sitter Quantum Breaking, Swampland Conjectures and Thermal Strings
• Thermal, Trapped and Chromo-Natural Inflation in light of the Swampland Criteria and the Trans-Planckian Censorship Conjecture
• The Octagon and the Non-Supersymmetric String Landscape
• Dark Energy, Dark Matter and Baryogenesis from a Model of a Complex Axion Field
• Three-forms and Fayet-Iliopoulos terms in Supergravity: Scanning Planck mass and BPS domain walls
• Unitarity Problems for an Effective Field Theory Description of Early Universe Cosmology
• Finiteness of 3D higher spin gravity Landscape
• Analytic Periods via Twisted Symmetric Squares
• Inflation, Gravity Mediated Supersymmetry Breaking, and de Sitter Vacua in Supergravity with a Kähler-Invariant FI Term
• On the constant roll complex scalar field inflationary models
• The Fate of Discrete 1-Form Symmetries in 6d
• Imprints of screened dark energy on nonlocal quantum correlations
• Maximal D=2 supergravities from higher dimensions
• Gravity-Induced Photon Interactions and Infrared Consistency in any Dimensions
• Critical collapse in K-essence models
• On supersymmetry breaking vacua from D-branes at orientifold singularities
• Reference level of the vacuum energy density of the Universe and astrophysical data
• A CFT Distance Conjecture
• Coupled Dark Sector Models and Cosmological Tensions
• Emergent Strings in Type IIB Calabi--Yau Compactifications
• Bulk Black Hole Dark Matter
• String Gases and the Swampland
• Starobinsky inflation beyond the leading order
• Swampland de Sitter Conjectures in No-Scale Supergravity Models
• A non-local way around the no-global-symmetries conjecture in quantum gravity?
• Deformed WZW Models and Hodge Theory -- Part I
• Geometric Flow of Bubbles
• On the correspondence between black holes, domain walls and fluxes
• A Note on Membrane Interactions and the Scalar potential
• Quantum Higgs Inflation
• Exploring the landscape of (anti-) de Sitter and Minkowski solutions: group manifolds, stability and scale separation
• Large and small field inflation from hyperbolic sigma models
• Bayesian Reasoning in Eternal Inflation: A Solution to the Measure Problem
• Probing the Weak Gravity Conjecture in the Cosmic Microwave Background
• Dimers, Orientifolds and Stability of Supersymmetry Breaking Vacua
• Features of a dark energy model in string theory
• S-dual Inflation and the String Swampland
• Large Star/Rose Extra Dimension with Small Leaves/Petals
• Asymptotic Weak Gravity Conjecture in M-theory on K3 $\times$ K3
• Constraint on Spinor-Vector Dualities in Six Dimensions
• Asymptotic safety, quantum gravity, and the swampland: a conceptual assessment
• Swampland Constraints on No-Boundary Quantum Cosmology
• Flavor, CP and Metaplectic Modular Symmetries in Type IIB Chiral Flux Vacua
• Consistency of Cubic Galileon Cosmology: Model-Independent Bounds from Background Expansion and Perturbative Analyses
• Consistent truncation and de Sitter space from gravitational instantons
• Flavor Symmetries and Automatic Enhancement in the 6d Supergravity Swampland
• Warming up the Fibres
• Nonassociative Ricci flows, star product and R-flux deformed black holes, and swampland conjectures
• Modern Cosmology, an Amuse-Gueule
• Note on initial conditions for small-field inflation
• The Swampland at Large Number of Space-Time Dimensions
• Forays into the dark side of the swamp
• Extremal Bifurcations of Rotating AdS${}_4$ Black Holes
• Cosmological constant as an integration constant
• A counterexample to the Nelson-Seiberg theorem
• Swampland Conjectures for an Almost Topological Gravity Theory
• Effective geometrodynamics for renormalization-group improved black-hole spacetimes in spherical symmetry
• Weyl invariant Jacobi forms along Higgsing trees
• The Super-Stuckelberg procedure and dS in Pure Supergravity
• Generating functions for intersection products of divisors in resolved F-theory models
• Implication of the swampland distance conjecture on the Cohen-Kaplan-Nelson bound in de Sitter space
• New formalism to define vacuum states for scalar fields in curved space-times
• Infinite distances in multicritical CFTs and higher-spin holography
• Affine Algebras at Infinite Distance Limits in the Heterotic String
• Purely non-perturbative AdS vacua and the swampland
• Constraints on Late Time Violations of the Equivalence Principle in the Dark Sector
• Tsallis holographic inflation in $f(R,T)$ gravity: CMB constraints, reheating, and swampland implications
• Limitations of an Effective Field Theory Treatment of Early Universe Cosmology
• Notes on the Quantum Corrections of Swampland and Trans-Planckian Censorship Conjecture
• Thermodynamic extremality relations in the massive gravity
• Mass Production of IIA and IIB dS Vacua
• Charting the Conformal Manifold of Holographic CFT${}_2$'s
• Lectures in Quantum Gravity
• Axion species scale and axion weak gravity conjecture-like bound
• Catalytic Creation of Bubble Universe Induced by Quintessence in Five Dimensions
• Black Hole Remnants from Dynamical Dimensional Reduction?
• Geometric flow equations for the number of space-time dimensions
• Holographic Dual of The Weak Gravity Conjecture
• EFT & Species Scale: Friends or foes?
• A Note on the Swampland Distance Conjecture
• A sufficient condition for counterexamples to the Nelson-Seiberg theorem
• dS Spaces and Brane Worlds in Exotic String Theories
• Consistency conditions for O-plane unsmearing from second-order perturbation theory
• Quantum-Ordering Ambiguities in Weak Chern-Simons 4D Gravity and Metastability of the Condensate-Induced Inflation
• Trans-Planckian Philosophy of Cosmology
• Taming Triangulation Dependence of T6/Z2xZ2 Resolutions
• Constraints on Metastable Dark Energy Decaying into Dark Matter
• Positive energy and non-SUSY flows in ISO(7) gauged supergravity
• Over-extremal brane shells from string theory?
• Signatures of Bulk Neutrinos in the Early Universe
• Radiative stability of tiny cosmological constant from the Swampland and quantized compactification
• Searching for Coleman-de Luccia bubbles in AdS compactifications
• Fluctuating Ensemble Averages and the BTZ Threshold
• What if string theory has a de Sitter excited state?
• Small field models of inflation that predict a tensor-to-scalar ratio $r=0.03$
• Stringy Forces in the Black Hole Interior
• Refined Swampland conjecture in deformed Starobinsky gravity
• Impossible Symmetries and Conformal Gravity
• Axion Monodromy Inflation, Trapping Mechanisms and the Swampland
• Novel modulus stabilization mechanism in higher dimensional f(R) Gravity
• Barrow holographic dark energy interacting model in the presence of radiation and matter
• Can an Anti-de Sitter Vacuum in the Dark Energy Sector Explain JWST High-Redshift Galaxy and Reionization Observations?
• Multi-field inflation from single-field models
• Supersymmetric Hybrid Inflation in Light of CMB Experiments and Swampland Conjectures
• The Stringy Origins of Galileons and their Novel Limit
• Breathing Comoving Hubble: Initial Condition and Eternity in view of the trans-Planckian Censorship Conjecture
• All $2D$ generalised dilaton theories from $d\ge 4$ gravities
• Uplift and towers of states in warped throat
• A comment on no-force conditions for black holes and branes
• Higher-Derivative Supergravity, AdS${}_4$ Holography, and Black Holes
• Aether, Dark Energy, and String Compactifications
• 4D dS vacua from AdS vacua of type IIB string theory and AdS distance conjecture
• Metastable vacua from torsion and machine learning
• Causality constraints on nonlinear supersymmetry
• The translational $\mu$-$\tau$ reflection symmetry of Majorana neutrinos
• Higgs in Nilpotent Supergravity: Vacuum Energy and Festina Lente
• Implications of quantum gravity for dark matter in the brane-world scenario
• Theories of gravity with nonminimal matter-curvature coupling and the de Sitter swampland conjectures
• Flavor structure from `canonical' Yukawa interactions and `emergent' kinetic terms
• Seeding the vacuum with entropy: the Chaplygin-like vacuum hypothesis
• $\frac{1}{2}$ Calabi-Yau 3-folds, Calabi-Yau 3-folds as double covers, and F-theory with U(1)s
• Enhancement of axion decay constants in type IIA theory?
• On the consistency of a class of R-symmetry gauged 6D N=(1,0) supergravities
• Geodesic completeness, cosmological bounces and inflation
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Helical phase inflation and its observational constraints
• Cosmic-Quantum Connections: Assessing the Viability of Weak Gravity and Weak Cosmic Censorship Conjectures in Kerr-Newman-Kiselev-Letelier Black Hole
• A maximal-entropy initial state of the Universe as a microscopic description of inflation
• On the limitations of non-geometric fluxes to realize dS vacua
• Non-perturbative stabilization of two Kähler moduli in type-IIB/F theory and the inflaton potential
• AdS Swampland Conjectures and Light Fermions
• The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
• Universal Relations with the Non-Extensive Entropy Perspective
• Escape from the swamp with spectator
• Flux vacua in type IIB compactifications on orbifolds: their finiteness and minimal string coupling
• The correlation of WGC and Hydrodynamics bound with $R^4$ correction in the charged AdS${}_{d+2}$ black brane
• Decay channels for double extremal black holes in four dimensions
• Two-Field Quintessential Higgs model and the Swampland
• Note on Shape Moduli Stabilization, String Gas Cosmology and the Swampland Criteria
• Testing quantum gravity with primordial gravitational waves
• Discrete Symmetries in Dimer Diagrams
• Further swampland constraint on Dirac Neutrino
• Black hole production, eternal inflation, and information in quasi-de Sitter space
• How Not to Extract Information From Black Holes: Cosmic Censorship as a Guiding Principle
• Aether SUSY breaking: Can aether be alternative to F-term SUSY breaking?
• The heterotic G${}_2$ system with reducible characteristic holonomy
• Higher spin swampland conjecture for massive AdS${}_3$ gravity
• Types of gauge groups in six-dimensional F-theory on double covers of rational elliptic 3-folds
• On Convexity of Charged Operators in CFTs and the Weak Gravity Conjecture
• Confinement from Distance in Metric Space and its Relation to Cosmological Constant
• Real-Time Corrections to the Effective Potential
• Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua
• The Trans-Planckian Censorship Conjecture in different frameworks of viable inflation
• Starobinsky inflation and Swampland conjectures
• Implications of the weak gravity conjecture in anomalous quiver gauge theories
• Improved model of large-field inflation with primordial black hole production in Starobinsky-like supergravity
• A correspondence between strings in the Hagedorn phase and asymptotically de Sitter space
• Morse-Bott inequalities, Topology Change and Cobordisms to Nothing
• Stability of Extremal Black Holes and Weak Cosmic Censorship Conjecture in Kiselev Spacetime
• De Sitter space constraints on brane tensions and couplings
• Spectral Constraints on Theories of Colored Particles and Gravity
• Analysis and spectral theory of neck-stretching problems
• Hybrid Inflation, Reheating and Dark Radiation in a IIB perturbative moduli stabilization scenario
• Assisted Fibre Inflation in Perturbative LVS
• Stability of BPS States and Weak Coupling Limits
• A (strictly) contemporary perspective on trans-Planckian censorship
• Emergent Kalb-Ramond fields from a dimer model
• Gravitational Positivity Bounds on Scalar Potentials
• Nonlinear dynamics of flux compactification
• Analytic Correlation of Inflationary Potential to Power Spectrum Shape: Limits of Validity, and `No-Go' for Small Field Model Analytics
• The string theory swampland in the Euclid, SKA and Vera Rubin observatory era
• Causality, unitarity and stability in quantum gravity: a non-perturbative perspective
• An effective three-dimensional de Sitter cosmology in string theory
• Extremal Instability for Topological Black Holes
• Stabilization of a twisted modulus on a mirror of rigid Calabi-Yau manifold
• Hybrid inflation and gravitational waves from accidentally light scalars
• A Computational Companion to Transient de Sitter and Quasi de Sitter States in SO(32) and E_8 X E_8 Heterotic String Theories I: Formalisms
• Spinor-Vector Duality and Mirror Symmetry
• Spatial Dependence of the Growth Factor in Scalar-Tensor Cosmology
• A domain wall bound on anti-de Sitter vacua
• State counting on fibered CY-3 folds and the non-Abelian Weak Gravity Conjecture
• At the End of the World: Local Dynamical Cobordism
• Kiselev Black Holes in Anti-de Sitter Spacetime Are Not Viable
• The four-dimensional null energy condition as a swampland conjecture
• Landscape of Narain CFTs
• Saturating unitarity bounds at U-duality symmetric points
• Quintessence and false vacuum: Two sides of the same coin?
• ISCOs and the weak gravity conjecture bound in higher derivative theories of gravity
• Moduli Dynamics in Effective Nested Warped Geometry in Four Dimensions and Some Cosmological Implications
• Brane/flux annihilation in double-throat system
• Gromov-Witten/Hilbert versus AdS3/CFT2 Correspondence
• Hořava-Lifshitz $F(\bar{R})$ theories and the Swampland
• Conformal bootstrap in momentum space at finite volume
• Bounds on tower mass scales in the presence of throats of different warping
• Three-family supersymmetric Pati-Salam models from intersecting D6-branes on rigid cycles
• The Dark Dimension, the Swampland, and the Dark Matter Fraction Composed of Primordial Black Holes
• Constraints on Global Symmetry Breaking in Quantum Gravity from Cosmic Birefringence Measurements
• Spinor-Vector Duality and the Swampland
• $F$-term Multi-Field Inflation in Supergravity without Stabiliser Superfields
• Smooth String Vacua in a Gravitationally Non-perturbative Regime
• A unique coupling of the massive spin-2 field to supergravity
• Background instability of quintessence model in light of entropy and distance conjecture
• Species scale associated with Weinberg operator and bound on Majorana neutrino mass
• Tame Complexity of Effective Field Theories in the Quantum Gravity Landscape
• Algebraic Realisation of the Zamolodchikov Metric in Narain Theories
• Cosmic acceleration from string induced Galileons
• Aspects of 4d supersymmetric dynamics and geometry
• $E_9$ symmetry in the Heterotic String on $S^1$ and the Weak Gravity Conjecture
• Avoiding recollapse in an open-AdS universe via a self-tuning-like mechanism
• Time Dependent String Compactification: Towards Bouncing Cosmology
• Hamilton-Jacobi analysis of noncanonical inflation in $f(R,T)$ gravity: Constraints from Planck/ACT data, and theoretical bounds
• Breaking Free from the Swampland of Impossible Universes through the DESI Portal
• Constraining Spatial Curvature with Priors from Swampland Conjectures
• Solar System and Atomic Clock Bounds on Locally Coupled Swampland Scalars
• Dynamical-System analysis of single-axion monodromy inflation with periodically-modulated potentials
• Positivity vs. Lorentz-violation: an explicit example
• Thermodynamic Split Conjecture and an Observational Test for Cosmological Entropy
• Charting GLOBs in Asymptotically Safe Gravity
• Systematic exploration of the non-geometric flux landscape
• Center Symmetry Breaking in Calabi--Yau Compactifications
• On the Occurrence of Finite-time Singularities in Swampland-related Quintessence Dark Energy Models
• Dynamical Tadpoles and Weak Gravity Constraints
• Component Actions of Liberated $\mathcal{N}=1$ Supergravity and New Fayet-Iliopoulos Terms in Superconformal Tensor Calculus