pith. machine review for the scientific record. sign in

arxiv: 2604.27068 · v1 · submitted 2026-04-29 · ✦ hep-th

Recognition: unknown

Holographic realization of higher-spin Carrollian free fields

Ethan D'Arcy , Arnaud Delfante , Stefan Fredenhagen
Authors on Pith no claims yet

Pith reviewed 2026-05-07 09:51 UTC · model grok-4.3

classification ✦ hep-th
keywords holographyflat space gravityhigher-spin gravityCarrollian fieldsasymptotic symmetriesMiura transformationsCoulomb gas
0
0 comments X

The pith

Boundary conditions in flat higher-spin gravity realize Carrollian free fields by splitting asymptotic symmetries into physical transformations and screening charges.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper constructs boundary conditions for three-dimensional asymptotically flat higher-spin gravity that generalize the diagonal gauge from Anti-de Sitter space. These conditions cause the asymptotic symmetries to decompose into genuine physical transformations and pure gauge redundancies generated by Carrollian screening charges. The resulting structure produces a bulk realization of Carrollian Miura transformations that express physical observables in terms of celestial free scalars. A sympathetic reader would care because this creates a direct connection between flat-space higher-spin gravity and a Carrollian Coulomb gas description, opening a route toward quantizing flat holography.

Core claim

We provide a holographic bulk realization of Carrollian free-field structures arising in three-dimensional asymptotically flat higher-spin gravity. We construct a class of boundary conditions that generalizes the diagonal gauge of Anti-de Sitter to flat spacetimes. We show that the associated asymptotic symmetries decompose into genuine physical transformations and pure gauge redundancies, the latter being generated by Carrollian screening charges. This structure leads to a bulk-born realization of Carrollian Miura transformations, expressing physical observables in terms of celestial free scalars.

What carries the argument

The generalization of diagonal gauge boundary conditions to flat spacetimes, which decomposes asymptotic symmetries into physical transformations and Carrollian screening charges.

If this is right

  • Physical observables become expressible through Carrollian Miura transformations in terms of celestial free scalars.
  • The construction establishes a concrete link between flat space higher-spin gravity and a Carrollian Coulomb gas description.
  • The setup supplies a promising route toward quantization of flat holography by mapping to known free-field structures.
  • Carrollian free-field structures appear directly in the bulk via the chosen boundary conditions.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Analogous boundary conditions could be explored in four-dimensional flat gravity or other higher-spin models.
  • Explicit correlation functions computed from the celestial scalars could test whether the Miura map preserves the expected Carrollian dynamics.
  • The link to the Coulomb gas may allow transfer of quantization techniques from integrable systems to flat holography.

Load-bearing premise

The proposed boundary conditions in flat spacetime must generalize the AdS diagonal gauge in a way that cleanly separates physical transformations from Carrollian screening charges without residual mixing.

What would settle it

An explicit computation of the charge Poisson brackets that shows the Carrollian screening charges fail to act as pure redundancies or do not decouple from the physical observables would falsify the decomposition.

read the original abstract

We provide a holographic bulk realization of Carrollian free-field structures arising in three-dimensional asymptotically flat (higher-spin) gravity. We construct a class of boundary conditions that generalizes the diagonal gauge of Anti-de Sitter to flat spacetimes. We show that the associated asymptotic symmetries decompose into genuine physical transformations and pure gauge redundancies, the latter being generated by Carrollian screening charges. This structure leads to a bulk-born realization of Carrollian Miura transformations, expressing physical observables in terms of celestial free scalars. Our results establish a concrete link between flat space (higher-spin) gravity and a Carrollian Coulomb gas description, thereby providing a promising route toward the quantization of flat holography.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

0 major / 2 minor

Summary. The paper constructs boundary conditions for three-dimensional asymptotically flat higher-spin gravity that generalize the diagonal gauge from AdS. These conditions lead to a decomposition of asymptotic symmetries into physical transformations and pure gauge redundancies generated by Carrollian screening charges. The structure yields Carrollian Miura transformations that express physical observables in terms of celestial free scalars, establishing a holographic link between flat-space higher-spin gravity and a Carrollian Coulomb gas description as a step toward quantizing flat holography.

Significance. If the derivations hold, the work provides a concrete bulk realization of Carrollian free-field structures directly from asymptotically flat higher-spin gravity. The generalization of the diagonal gauge and the resulting symmetry decomposition without additional parameters represent a clear advance for flat holography, particularly in connecting to Carrollian Coulomb gas models for potential quantization.

minor comments (2)
  1. [Boundary conditions] The explicit fall-off conditions and connection form in the boundary conditions section should include a side-by-side comparison with the AdS diagonal gauge to make the generalization fully transparent.
  2. [Symmetry decomposition and Miura transformations] The derivation of the Carrollian Miura map from the screening charges would benefit from an additional equation showing the explicit map between observables and free scalars, including any intermediate steps.

Simulated Author's Rebuttal

0 responses · 0 unresolved

We thank the referee for the positive summary, significance assessment, and recommendation of minor revision. No major comments were raised in the report.

Circularity Check

0 steps flagged

No significant circularity in the derivation chain

full rationale

The paper presents a direct mathematical construction: a class of boundary conditions is defined that generalizes the AdS diagonal gauge to asymptotically flat higher-spin gravity, from which the decomposition of asymptotic symmetries into physical transformations and Carrollian screening charges is derived via the flat-space connection form and fall-off conditions. The Carrollian Miura transformations then follow by expressing physical observables in terms of celestial free scalars, leading to the link with the Carrollian Coulomb gas. No steps reduce by construction to fitted inputs, no parameters are renamed as predictions, and no load-bearing self-citations or uniqueness theorems imported from the authors' prior work make the central result tautological. The derivation is self-contained as a bulk-to-boundary realization from the stated assumptions.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Based on abstract only; no explicit free parameters, axioms, or invented entities are identifiable. Standard assumptions of asymptotically flat gravity and higher-spin extensions are implicit but not detailed.

pith-pipeline@v0.9.0 · 5409 in / 1092 out tokens · 46160 ms · 2026-05-07T09:51:33.320240+00:00 · methodology

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Carroll fermions from null reduction: A case of good and bad fermions

    hep-th 2026-05 unverdicted novelty 6.0

    Carrollian fermionic actions for electric and magnetic sectors are derived from a single Bargmann Dirac action by null reduction, with good and bad fermions as dynamical and constrained modes valid in any dimension.

Reference graph

Works this paper leans on

81 extracted references · 60 canonical work pages · cited by 1 Pith paper · 2 internal anchors

  1. [1]

    The Large N Limit of Superconformal Field Theories and Supergravity

    J.M. Maldacena,The Large N limit of superconformal field theories and supergravity,Adv. Theor. Math. Phys.2(1998) 231 [hep-th/9711200]

    work page internal anchor Pith review arXiv 1998

  2. [2]

    Anti De Sitter Space And Holography

    E. Witten,Anti-de Sitter space and holography,Adv. Theor. Math. Phys.2(1998) 253 [hep-th/9802150]

    work page internal anchor Pith review arXiv 1998

  3. [3]

    The Black Hole in Three Dimensional Space Time

    M. Banados, C. Teitelboim and J. Zanelli,The Black hole in three-dimensional space-time, Phys. Rev. Lett.69(1992) 1849 [hep-th/9204099]

    work page Pith review arXiv 1992

  4. [4]

    Higher Spin Black Holes

    M. Gutperle and P. Kraus,Higher Spin Black Holes,JHEP05(2011) 022 [1103.4304]

    work page Pith review arXiv 2011

  5. [5]

    Brown and M

    J.D. Brown and M. Henneaux,Central Charges in the Canonical Realization of Asymptotic Symmetries: An Example from Three-Dimensional Gravity,Commun. Math. Phys.104 (1986) 207

    1986

  6. [6]

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

    G. Barnich and G. Compere,Classical central extension for asymptotic symmetries at null infinity in three spacetime dimensions,Class. Quant. Grav.24(2007) F15 [gr-qc/0610130]

    work page Pith review arXiv 2007

  7. [7]

    Nonlinear W(infinity) Algebra as Asymptotic Symmetry of Three-Dimensional Higher Spin Anti-de Sitter Gravity

    M. Henneaux and S.-J. Rey,NonlinearWinf inity as Asymptotic Symmetry of Three-Dimensional Higher Spin Anti-de Sitter Gravity,JHEP12(2010) 007 [1008.4579]

    work page Pith review arXiv 2010

  8. [8]

    Asymptotic symmetries of three-dimensional gravity coupled to higher-spin fields

    A. Campoleoni, S. Fredenhagen, S. Pfenninger and S. Theisen,Asymptotic symmetries of three-dimensional gravity coupled to higher-spin fields,JHEP11(2010) 007 [1008.4744]

    work page Pith review arXiv 2010

  9. [9]

    Aragone and S

    C. Aragone and S. Deser,Hypersymmetry inD= 3of Coupled Gravity Massless Spin 5/2 System,Class. Quant. Grav.1(1984) L9

    1984

  10. [10]

    Achucarro and P.K

    A. Achucarro and P.K. Townsend,A Chern-Simons Action for Three-Dimensional anti-De Sitter Supergravity Theories,Phys. Lett. B180(1986) 89

    1986

  11. [11]

    Witten,(2+1)-Dimensional Gravity as an Exactly Soluble System,Nucl

    E. Witten,(2+1)-Dimensional Gravity as an Exactly Soluble System,Nucl. Phys. B311 (1988) 46

    1988

  12. [12]

    Blencowe,A Consistent Interacting Massless Higher Spin Field Theory inD= (2+1), Class

    M.P. Blencowe,A Consistent Interacting Massless Higher Spin Field Theory inD= (2+1), Class. Quant. Grav.6(1989) 443

    1989

  13. [13]

    Bergshoeff, M.P

    E. Bergshoeff, M.P. Blencowe and K.S. Stelle,Area Preserving Diffeomorphisms and Higher Spin Algebra,Commun. Math. Phys.128(1990) 213

    1990

  14. [14]

    Vasiliev,Higher Spin Algebras and Quantization on the Sphere and Hyperboloid,Int

    M.A. Vasiliev,Higher Spin Algebras and Quantization on the Sphere and Hyperboloid,Int. J. Mod. Phys. A6(1991) 1115

    1991

  15. [15]

    Black Hole Entropy from Near-Horizon Microstates

    A. Strominger,Black hole entropy from near horizon microstates,JHEP02(1998) 009 [hep-th/9712251]

    work page Pith review arXiv 1998

  16. [16]

    Drinfeld and V.V

    V.G. Drinfeld and V.V. Sokolov,Lie algebras and equations of Korteweg-de Vries type,J. Sov. Math.30(1984) 1975

    1984

  17. [17]

    Zamolodchikov,Infinite Additional Symmetries in Two-Dimensional Conformal Quantum Field Theory,Theor

    A.B. Zamolodchikov,Infinite Additional Symmetries in Two-Dimensional Conformal Quantum Field Theory,Theor. Math. Phys.65(1985) 1205. – 40 –

    1985

  18. [18]

    Gaberdiel and R

    M.R. Gaberdiel and R. Gopakumar,An AdS3 Dual for Minimal Model CFTs,Phys. Rev. D 83(2011) 066007 [1011.2986]

    work page arXiv 2011

  19. [19]

    Higher-Spin Gauge Interactions for Massive Matter Fields in 3D AdS Space-Time

    S.F. Prokushkin and M.A. Vasiliev,Higher spin gauge interactions for massive matter fields in 3-D AdS space-time,Nucl. Phys. B545(1999) 385 [hep-th/9806236]

    work page Pith review arXiv 1999

  20. [20]

    Bondi,Gravitational Waves in General Relativity,Nature186(1960) 535

    H. Bondi,Gravitational Waves in General Relativity,Nature186(1960) 535

    1960

  21. [21]

    Sachs,Gravitational waves in general relativity

    R.K. Sachs,Gravitational waves in general relativity. 6. The outgoing radiation condition, Proc. Roy. Soc. Lond. A264(1961) 309

    1961

  22. [22]

    Conformal Carroll groups and BMS symmetry

    C. Duval, G.W. Gibbons and P.A. Horvathy,Conformal Carroll groups and BMS symmetry, Class. Quant. Grav.31(2014) 092001 [1402.5894]

    work page Pith review arXiv 2014

  23. [23]

    Ruzziconi,Carrollian Physics and Holography,arXiv:2602.02644 [hep-th]

    R. Ruzziconi,Carrollian physics and holography,Phys. Rept.1182(2026) 1 [2602.02644]

    work page arXiv 2026

  24. [24]

    Afshar, A

    H. Afshar, A. Bagchi, R. Fareghbal, D. Grumiller and J. Rosseel,Spin-3 Gravity in Three-Dimensional Flat Space,Phys. Rev. Lett.111(2013) 121603 [1307.4768]

    work page arXiv 2013

  25. [25]

    Gonzalez, J

    H.A. Gonzalez, J. Matulich, M. Pino and R. Troncoso,Asymptotically flat spacetimes in three-dimensional higher spin gravity,JHEP09(2013) 016 [1307.5651]

    work page arXiv 2013

  26. [26]

    Ammon, D

    M. Ammon, D. Grumiller, S. Prohazka, M. Riegler and R. Wutte,Higher-Spin Flat Space Cosmologies with Soft Hair,JHEP05(2017) 031 [1703.02594]

    work page arXiv 2017

  27. [27]

    Fateev and S.L

    V.A. Fateev and S.L. Lukyanov,The Models of Two-Dimensional Conformal Quantum Field Theory with Z(n) Symmetry,Int. J. Mod. Phys. A3(1988) 507

    1988

  28. [28]

    Balog, L

    J. Balog, L. Fehér, L. O’Raifeartaigh, P. Forgács and A. Wipf,Toda theory and w-algebra from a gauged wznw point of view,Annals of Physics203(1990) 76

    1990

  29. [29]

    Campoleoni, S

    A. Campoleoni, S. Fredenhagen and J. Raeymaekers,Quantizing higher-spin gravity in free-field variables,JHEP02(2018) 126 [1712.08078]

    work page arXiv 2018

  30. [30]

    Campoleoni and S

    A. Campoleoni and S. Fredenhagen,Higher-Spin Gauge Theories in Three Spacetime Dimensions,Lect. Notes Phys.1028(2024) 121 [2403.16567]

    work page arXiv 2024

  31. [31]

    Banerjee, D.P

    N. Banerjee, D.P. Jatkar, S. Mukhi and T. Neogi,Free-field realisations of the BMS3 algebra and its extensions,JHEP06(2016) 024 [1512.06240]

    work page arXiv 2016

  32. [32]

    Fredenhagen and L

    S. Fredenhagen and L. Hörl,Free-field construction of Carrollian WN-algebras,JHEP02 (2026) 218 [2509.14441]

    work page arXiv 2026

  33. [33]

    Afshar, D

    H. Afshar, D. Grumiller, W. Merbis, A. Perez, D. Tempo and R. Troncoso,Soft hairy horizons in three spacetime dimensions,Phys. Rev. D95(2017) 106005 [1611.09783]

    work page arXiv 2017

  34. [34]

    Lee and R.M

    J. Lee and R.M. Wald,Local symmetries and constraints,J. Math. Phys.31(1990) 725

    1990

  35. [35]

    Black Hole Entropy is Noether Charge

    R.M. Wald,Black hole entropy is the Noether charge,Phys. Rev. D48(1993) R3427 [gr-qc/9307038]

    work page Pith review arXiv 1993

  36. [36]

    Some Properties of Noether Charge and a Proposal for Dynamical Black Hole Entropy

    V. Iyer and R.M. Wald,Some properties of Noether charge and a proposal for dynamical black hole entropy,Phys. Rev. D50(1994) 846 [gr-qc/9403028]

    work page Pith review arXiv 1994

  37. [37]

    Campoleoni, A

    A. Campoleoni, A. Delfante, S. Pekar, P.M. Petropoulos, D. Rivera-Betancour and M. Vilatte,Flat from anti de Sitter,JHEP12(2023) 078 [2309.15182]

    work page arXiv 2023

  38. [38]

    Fiorucci,Leaky covariant phase spaces: Theory and application toΛ-BMS symmetry, Ph.D

    A. Fiorucci,Leaky covariant phase spaces: Theory and application toΛ-BMS symmetry, Ph.D. thesis, Brussels U., Intl. Solvay Inst., Brussels, 2021.2112.07666. – 41 –

    work page arXiv 2021

  39. [39]

    Ciambelli, From Asymptotic Symmetries to the Corner Proposal, PoSModave2022, 002 (2023), arXiv:2212.13644 [hep-th]

    L. Ciambelli,From Asymptotic Symmetries to the Corner Proposal,PoSModave2022 (2023) 002 [2212.13644]

    work page arXiv 2023

  40. [40]

    Delfante,Of asymptotic charges and renormalizations, Ph.D

    A. Delfante,Of asymptotic charges and renormalizations, Ph.D. thesis, U. Mons, 6, 2024

    2024

  41. [41]

    Banados,Global charges in Chern-Simons field theory and the (2+1) black hole,Phys

    M. Banados,Global charges in Chern-Simons field theory and the (2+1) black hole,Phys. Rev. D52(1996) 5816 [hep-th/9405171]

    work page arXiv 1996

  42. [42]

    Fefferman and C.R

    C. Fefferman and C.R. Graham,Conformal invariants, inÉlie Cartan et les mathématiques d’ aujourd’hui - Lyon, 25-29 juin 1984, no. S131 in Astérisque, pp. 95–116, Société mathématique de France (1985)

    1984

  43. [43]

    Grumiller and M

    D. Grumiller and M. Riegler,Most general AdS3 boundary conditions,JHEP10(2016) 023 [1608.01308]

    work page arXiv 2016

  44. [44]

    Grumiller, W

    D. Grumiller, W. Merbis and M. Riegler,Most general flat space boundary conditions in three-dimensional Einstein gravity,Class. Quant. Grav.34(2017) 184001 [1704.07419]

    work page arXiv 2017

  45. [45]

    Campoleoni, L

    A. Campoleoni, L. Ciambelli, A. Delfante, C. Marteau, P.M. Petropoulos and R. Ruzziconi, Holographic Lorentz and Carroll frames,JHEP12(2022) 007 [2208.07575]

    work page arXiv 2022

  46. [46]

    Ciambelli, A

    L. Ciambelli, A. Delfante, R. Ruzziconi and C. Zwikel,Symmetries and charges in Weyl-Fefferman-Graham gauge,Phys. Rev. D108(2023) 126003 [2308.15480]

    work page arXiv 2023

  47. [47]

    Delfante,Boundary freedom in higher spin gravity,Phys

    A. Delfante,Boundary freedom in higher spin gravity,Phys. Lett. B873(2026) 140208 [2509.14398]

    work page arXiv 2026

  48. [48]

    Banados,Three-dimensional quantum geometry and black holes,AIP Conf

    M. Banados,Three-dimensional quantum geometry and black holes,AIP Conf. Proc.484 (1999) 147 [hep-th/9901148]

    work page arXiv 1999

  49. [49]

    Schwimmer and S

    A. Schwimmer and S. Theisen,Entanglement Entropy, Trace Anomalies and Holography, Nucl. Phys. B801(2008) 1 [0802.1017]

    work page arXiv 2008

  50. [50]

    BMS charge algebra

    G. Barnich and C. Troessaert,BMS charge algebra,JHEP12(2011) 105 [1106.0213]

    work page Pith review arXiv 2011

  51. [51]

    Ruzziconi and C

    R. Ruzziconi and C. Zwikel,Conservation and Integrability in Lower-Dimensional Gravity, JHEP04(2021) 034 [2012.03961]

    work page arXiv 2021

  52. [52]

    Geiller, C

    M. Geiller, C. Goeller and C. Zwikel,3d gravity in Bondi-Weyl gauge: charges, corners, and integrability,JHEP09(2021) 029 [2107.01073]

    work page arXiv 2021

  53. [53]

    Regge and C

    T. Regge and C. Teitelboim,Role of Surface Integrals in the Hamiltonian Formulation of General Relativity,Annals Phys.88(1974) 286

    1974

  54. [54]

    Brown and M

    J.D. Brown and M. Henneaux,On the Poisson Brackets of Differentiable Generators in Classical Field Theory,J. Math. Phys.27(1986) 489

    1986

  55. [55]

    Floreanini and R

    R. Floreanini and R. Jackiw,Selfdual Fields as Charge Density Solitons,Phys. Rev. Lett.59 (1987) 1873

    1987

  56. [56]

    Feigin and D.B

    B.L. Feigin and D.B. Fuchs,Representations of the virasoro algebra,Adv. Stud. Contemp. Math.(1983)

    1983

  57. [57]

    Wakimoto,Fock representations of the affine lie algebraa(1) 1 ,Commun

    M. Wakimoto,Fock representations of the affine lie algebraa(1) 1 ,Commun. Math. Phys.104 (1986) 605

    1986

  58. [58]

    Ciambelli and R.G

    L. Ciambelli and R.G. Leigh,Weyl Connections and their Role in Holography,Phys. Rev. D 101(2020) 086020 [1905.04339]

    work page arXiv 2020

  59. [59]

    Aspects of the BMS/CFT correspondence

    G. Barnich and C. Troessaert,Aspects of the BMS/CFT correspondence,JHEP05(2010) 062 [1001.1541]. – 42 –

    work page Pith review arXiv 2010

  60. [60]

    Campoleoni, D

    A. Campoleoni, D. Francia and C. Heissenberg,On higher-spin supertranslations and superrotations,JHEP05(2017) 120 [1703.01351]

    work page arXiv 2017

  61. [61]

    Campoleoni, D

    A. Campoleoni, D. Francia and C. Heissenberg,Asymptotic Charges at Null Infinity in Any Dimension,Universe4(2018) 47 [1712.09591]

    work page arXiv 2018

  62. [62]

    Campoleoni, D

    A. Campoleoni, D. Francia and C. Heissenberg,On asymptotic symmetries in higher dimensions for any spin,JHEP12(2020) 129 [2011.04420]

    work page arXiv 2020

  63. [63]

    Campoleoni, A

    A. Campoleoni, A. Delfante, D. Francia and C. Heissenberg,Finite actions and asymptotic charges at null infinity for any spin,Phys. Lett. B870(2025) 139908 [2507.19310]

    work page arXiv 2025

  64. [64]

    Campoleoni, H.A

    A. Campoleoni, H.A. Gonzalez, B. Oblak and M. Riegler,BMS Modules in Three Dimensions,Int. J. Mod. Phys. A31(2016) 1650068 [1603.03812]

    work page arXiv 2016

  65. [65]

    Compère, L

    G. Compère, L. Donnay, P.-H. Lambert and W. Schulgin,Liouville theory beyond the cosmological horizon,JHEP03(2015) 158 [1411.7873]

    work page arXiv 2015

  66. [66]

    Freidel, F

    L. Freidel, F. Hopfmüller and A. Riello,Asymptotic Renormalization in Flat Space: Symplectic Potential and Charges of Electromagnetism,JHEP10(2019) 126 [1904.04384]

    work page arXiv 2019

  67. [67]

    Ajello, K

    R. McNees and C. Zwikel,Finite charges from the bulk action,JHEP08(2023) 154 [2306.16451]

    work page arXiv 2023

  68. [68]

    Campoleoni, A

    A. Campoleoni, A. Delfante, D. Francia and C. Heissenberg,Renormalization of spin-one asymptotic charges in AdSD,JHEP12(2023) 061 [2308.00476]

    work page arXiv 2023

  69. [69]

    Riello and L

    A. Riello and L. Freidel,Renormalization of conformal infinity as a stretched horizon,Class. Quant. Grav.41(2024) 175013 [2402.03097]

    work page arXiv 2024

  70. [70]

    Campoleoni, L

    A. Campoleoni, L. Ciambelli, C. Marteau, P.M. Petropoulos and K. Siampos, Two-dimensional fluids and their holographic duals,Nucl. Phys. B946(2019) 114692 [1812.04019]

    work page arXiv 2019

  71. [71]

    Detournay and M

    S. Detournay and M. Riegler,Enhanced Asymptotic Symmetry Algebra of 2+1 Dimensional Flat Space,Phys. Rev. D95(2017) 046008 [1612.00278]

    work page arXiv 2017

  72. [72]

    Symmetries at null boundaries: two and three dimensional gravity cases,

    H. Adami, M.M. Sheikh-Jabbari, V. Taghiloo, H. Yavartanoo and C. Zwikel,Symmetries at null boundaries: two and three dimensional gravity cases,JHEP10(2020) 107 [2007.12759]

    work page arXiv 2020

  73. [73]

    Adami, P

    H. Adami, P. Mao, M.M. Sheikh-Jabbari, V. Taghiloo and H. Yavartanoo,Symmetries at causal boundaries in 2D and 3D gravity,JHEP05(2022) 189 [2202.12129]

    work page arXiv 2022

  74. [74]

    Adami, M.M

    H. Adami, M.M. Sheikh-Jabbari and V. Taghiloo,Gravitational stress tensor and current at null infinity in three dimensions,Phys. Lett. B855(2024) 138835 [2405.00149]

    work page arXiv 2024

  75. [75]

    Taghiloo,Darboux soft hair in 3D asymptotically flat spacetimes,Phys

    V. Taghiloo,Darboux soft hair in 3D asymptotically flat spacetimes,Phys. Lett. B860 (2025) 139209 [2407.00525]

    work page arXiv 2025

  76. [76]

    Fuentealba, J

    O. Fuentealba, J. Matulich, A. Pérez, M. Pino, P. Rodríguez, D. Tempo et al.,Integrable systems with BMS3 Poisson structure and the dynamics of locally flat spacetimes,JHEP01 (2018) 148 [1711.02646]

    work page arXiv 2018

  77. [77]

    Ojeda and A

    E. Ojeda and A. Pérez,Integrable systems and the boundary dynamics of higher spin gravity on AdS3,JHEP11(2020) 089 [2009.07829]

    work page arXiv 2020

  78. [78]

    Holography of 3d Flat Cosmological Horizons

    A. Bagchi, S. Detournay, R. Fareghbal and J. Simón,Holography of 3D Flat Cosmological Horizons,Phys. Rev. Lett.110(2013) 141302 [1208.4372]. – 43 –

    work page Pith review arXiv 2013

  79. [79]

    Entropy of three-dimensional asymptotically flat cosmological solutions

    G. Barnich,Entropy of three-dimensional asymptotically flat cosmological solutions,JHEP 10(2012) 095 [1208.4371]

    work page Pith review arXiv 2012

  80. [80]

    M. Gary, D. Grumiller, M. Riegler and J. Rosseel,Flat space (higher spin) gravity with chemical potentials,JHEP01(2015) 152 [1411.3728]

    work page arXiv 2015

Showing first 80 references.