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Classical central extension for asymptotic symmetries at null infinity in three spacetime dimensions

16 Pith papers cite this work. Polarity classification is still indexing.

16 Pith papers citing it
abstract

The symmetry algebra of asymptotically flat spacetimes at null infinity in three dimensions is the semi-direct sum of the infinitesimal diffeomorphisms on the circle with an abelian ideal of supertranslations. The associated charge algebra is shown to admit a non trivial classical central extension of Virasoro type closely related to that of the anti-de Sitter case.

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2026 11 2025 5

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representative citing papers

Asymptotically-FLRW$_3$ spacetimes

gr-qc · 2026-06-01 · unverdicted · novelty 7.0

Introduces asymptotically-FLRW3 spacetimes whose asymptotic symmetry group is the one-parameter family BMS3^k, fully characterizes the scalar-field solution space, identifies covariant mass/angular-momentum aspects and news via vacuum orbits, and exhibits exactly conserved non-linear Newman-Penrose

BMS$_3$ invariant field theories

hep-th · 2026-07-07 · accept · novelty 6.0

New BMS3-invariant 2D scalar theories (electric, magnetic, canonical, coupled) with boundary analysis, flux laws, monodromy matching to 3D gravity, and complementary AdS3/dS3 flat limits.

$BMS_3$-like algebras via the $Z_N$-graded $u(1)^2$ Kac-Moody algebra

hep-th · 2026-06-28 · unverdicted · novelty 6.0

Compactification of the non-compact algebraic varieties of Z_N-graded Sugawara constructions on u(1)^2 Kac-Moody yields BMS3-like algebras Vir ⋊ F with F nilpotent of depth r < N for N>2, with depth tied to singularity order.

Kerroll black holes

hep-th · 2026-05-14 · unverdicted · novelty 6.0 · 2 refs

Rotating black holes are constructed in magnetic Carroll gravity, including an intrinsically Carrollian dressed solution and a Kerroll black hole from an odd-power c-expansion of GR, with conserved charges computed.

Timelike Liouville theory and AdS$_3$ gravity at finite cutoff

hep-th · 2025-08-05 · unverdicted · novelty 6.0

Proposes that AdS3 gravity at finite cutoff is dual to a CFT2 coupled to timelike Liouville theory deformed by a marginal operator, with checks via semiclassical partition functions and EOM matching.

QFT in Klein space

hep-th · 2025-05-22 · unverdicted · novelty 6.0

Authors construct canonical and path-integral quantizations for QFT in Klein space using extra modes, deriving correlation functions that match Minkowski space via analytical continuation.

Carroll fermions, expansions and the lightcone

hep-th · 2026-04-15 · unverdicted · novelty 6.0

Carrollian fermion actions are obtained from relativistic Dirac theory via c-expansion and connected to light-cone dynamics through co-dimension one Carroll subalgebras in the Poincaré algebra.

Post-Carroll Algebra, Conformal Extensions, and Field Theories

hep-th · 2026-06-17 · unverdicted · novelty 5.0 · 2 refs

Defines post-Carroll algebra allowing central charges in higher dimensions, constructs its conformal extension and the Carroll-Schrödinger algebra matching prior theory, and derives two-point functions in post-Carrollian CFTs with electric/magnetic sectors in 1+1 dimensions.

The Carrollian Kaleidoscope

hep-th · 2025-06-19 · unverdicted · novelty 1.0

A review summarizing Carrollian symmetries, CCFT constructions, and applications in AFS holography, Carroll hydrodynamics, and condensed matter phenomena such as fractons and flat bands.

citing papers explorer

Showing 16 of 16 citing papers.

  • The Energy-Momentum-News Complex near Future Null Infinity hep-th · 2026-07-08 · accept · none · ref 125 · internal anchor

    A Carroll-covariant energy-momentum-news complex at future null infinity yields Ward identities that generalise the Bondi loss equations, with an anomalous Carroll boost.

  • Asymptotically-FLRW$_3$ spacetimes gr-qc · 2026-06-01 · unverdicted · none · ref 79 · internal anchor

    Introduces asymptotically-FLRW3 spacetimes whose asymptotic symmetry group is the one-parameter family BMS3^k, fully characterizes the scalar-field solution space, identifies covariant mass/angular-momentum aspects and news via vacuum orbits, and exhibits exactly conserved non-linear Newman-Penrose

  • BMS$_3$ invariant field theories hep-th · 2026-07-07 · accept · none · ref 5 · internal anchor

    New BMS3-invariant 2D scalar theories (electric, magnetic, canonical, coupled) with boundary analysis, flux laws, monodromy matching to 3D gravity, and complementary AdS3/dS3 flat limits.

  • $BMS_3$-like algebras via the $Z_N$-graded $u(1)^2$ Kac-Moody algebra hep-th · 2026-06-28 · unverdicted · none · ref 20 · internal anchor

    Compactification of the non-compact algebraic varieties of Z_N-graded Sugawara constructions on u(1)^2 Kac-Moody yields BMS3-like algebras Vir ⋊ F with F nilpotent of depth r < N for N>2, with depth tied to singularity order.

  • Kerroll black holes hep-th · 2026-05-14 · unverdicted · none · ref 3 · 2 links · internal anchor

    Rotating black holes are constructed in magnetic Carroll gravity, including an intrinsically Carrollian dressed solution and a Kerroll black hole from an odd-power c-expansion of GR, with conserved charges computed.

  • Higher-spin composites and emergent AdS$_3$ geometry in the $(1+1)$-dimensional Gross-Neveu model hep-th · 2026-03-29 · reject · none · ref 106 · internal anchor

    The paper proposes that condensate competition in the 2d Gross-Neveu model generates an emergent AdS₃ bulk, a higher-spin tower, D1-branes, and linearized Einstein gravity with G₃ = ℓ_AdS/4πN².

  • Conformal Blocks in 2d Carrollian/Galilean CFTs and Excited State Entanglement Entropy hep-th · 2025-10-29 · unverdicted · none · ref 44 · internal anchor

    Derives heavy-light conformal blocks in 2d C/G CFTs and computes excited-state entanglement entropy via replica trick, finding thermal form that reproduces holographic EE and establishes dictionary between boundary weights and bulk mass/angular momentum.

  • Integrability in Three-Dimensional Gravity: Eigenfunction-Forced KdV Flows hep-th · 2025-10-12 · unverdicted · none · ref 1 · internal anchor

    Derives forced KdV equation from Chern-Simons 3D gravity with chiral boundaries, with forcing set by Schrödinger eigenfunctions, and solves reflectionless and radiative sectors via inverse scattering.

  • Timelike Liouville theory and AdS$_3$ gravity at finite cutoff hep-th · 2025-08-05 · unverdicted · none · ref 73 · internal anchor

    Proposes that AdS3 gravity at finite cutoff is dual to a CFT2 coupled to timelike Liouville theory deformed by a marginal operator, with checks via semiclassical partition functions and EOM matching.

  • QFT in Klein space hep-th · 2025-05-22 · unverdicted · none · ref 12 · internal anchor

    Authors construct canonical and path-integral quantizations for QFT in Klein space using extra modes, deriving correlation functions that match Minkowski space via analytical continuation.

  • Holographic realization of higher-spin Carrollian free fields hep-th · 2026-04-29 · unverdicted · none · ref 6

    A bulk construction in asymptotically flat higher-spin gravity realizes Carrollian free fields and Miura transformations via generalized boundary conditions and screening charges.

  • Carroll fermions, expansions and the lightcone hep-th · 2026-04-15 · unverdicted · none · ref 6

    Carrollian fermion actions are obtained from relativistic Dirac theory via c-expansion and connected to light-cone dynamics through co-dimension one Carroll subalgebras in the Poincaré algebra.

  • On Integrable Structures on Non-compact Boundaries in Three-Dimensional Gravity hep-th · 2026-07-07 · conditional · none · ref 104 · internal anchor

    In the diagonal (Cartan) sector of AdS3 gravity, the radial flow of the quasi-local stress tensor satisfies an exact T Tbar-like equation, while the boundary time evolution forms an integrable bi-Hamiltonian hierarchy.

  • Massive fields in 3D Minkowski space and boundary correlators hep-th · 2026-06-24 · unverdicted · none · ref 67 · internal anchor

    The work identifies a broader class of 2D Carrollian CFT correlators that encode massive 3D Minkowski S-matrices and constructs the corresponding bulk-to-boundary propagator.

  • Post-Carroll Algebra, Conformal Extensions, and Field Theories hep-th · 2026-06-17 · unverdicted · none · ref 12 · 2 links · internal anchor

    Defines post-Carroll algebra allowing central charges in higher dimensions, constructs its conformal extension and the Carroll-Schrödinger algebra matching prior theory, and derives two-point functions in post-Carrollian CFTs with electric/magnetic sectors in 1+1 dimensions.

  • The Carrollian Kaleidoscope hep-th · 2025-06-19 · unverdicted · none · ref 158 · internal anchor

    A review summarizing Carrollian symmetries, CCFT constructions, and applications in AFS holography, Carroll hydrodynamics, and condensed matter phenomena such as fractons and flat bands.