2016/07/19 by Daniel Grumiller, Alfredo Pérez, Alfredo Perez +3 · 2 citations
Mathematics · Physics and Astronomy · #BTZ black hole #Black Holes and Theoretical Physics #Black brane #Black hole (networking) #Cosmology and Gravitation Theories #Entropy (arrow of time) #Extremal black hole #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Physics #Pure mathematics #Quantum mechanics #Spin (aerodynamics) #Theoretical physics #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep10(2016)119
published as JHEP 10 (2016) 119 · 24 pages, no figures
arxiv created 2016/07/19 · openalex publication_date 2016/10/01 · arxiv updated 2016/10/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We construct a new set of boundary conditions for higher spin gravity, inspired by a recent “soft Heisenberg hair”-proposal for General Relativity on three-dimensional Anti-de Sitter space. The asymptotic symmetry algebra consists of a set of affine û(1) current algebras. Its associated canonical charges generate higher spin soft hair. We focus first on the spin-3 case and then extend some of our main results to spin-N , many of which resemble the spin-2 results: the generators of the asymptotic W 3 algebra naturally emerge from composite operators of the û(1) charges through a twisted Sugawara construction; our boundary conditions ensure regularity of the Euclidean solutions space independently of the values of the charges; solutions, which we call “higher spin black flowers”, are stationary but not necessarily spherically symmetric. Finally, we derive the entropy of higher spin black flowers, and find that for the branch that is continuously connected to the BTZ black hole, it depends only on the affine purely gravitational zero modes. Using our map to W -algebra currents we recover well-known expressions for higher spin entropy. We also address higher spin black flowers in the metric formalism and achieve full consistency with previous results.