Zobrazeno 1 - 10
of 280 668
pro vyhledávání: '"bms"'
We construct wavefunctions for unitary irreducible representations (UIRs) of the Bondi-Metzner-Sachs (BMS) group, i.e. BMS particles, and show that they describe quantum superpositions of (Poincar\'e) particles propagating on inequivalent gravity vac
Externí odkaz:
http://arxiv.org/abs/2412.06002
We generalise BMS algebras in three dimensions by the introduction of an arbitrary real parameter $\lambda$, recovering the standard algebras (BMS, extended BMS and Weyl-BMS) for $\lambda=-1$. We exhibit a realisation of the (centreless) Weyl $\lambd
Externí odkaz:
http://arxiv.org/abs/2411.14866
This paper investigates the structure of Verma modules over the N=1 BMS superalgebra. We provide a detailed classification of singular vectors, establish necessary and sufficient conditions for the existence of subsingular vectors, uncover the struct
Externí odkaz:
http://arxiv.org/abs/2412.17000
Autor:
Simón, Joan, Yu, Boyang
We consider the geometric action formulation for 3d pure gravity with vanishing cosmological constant. We use fermionic localization to compute the exact torus partition function for a constant representative coadjoint orbit of $\widehat{\text{BMS}}_
Externí odkaz:
http://arxiv.org/abs/2412.05038
Autor:
Krishna, T. N. V.1 (AUTHOR) lchang@unb.ca, Kumar, Seelam V. S. V. Prabhu Deva2 (AUTHOR) seelamvs@mcmaster.ca, Srinivasa Rao, Sunkara3 (AUTHOR) srinivasarao.s@klh.edu.in, Chang, Liuchen1 (AUTHOR)
Publikováno v:
Energies (19961073). Jul2024, Vol. 17 Issue 14, p3360. 18p.
The BMS$_3$ Lie algebra belongs to a one-parameter family of Lie algebras obtained by centrally extending abelian extensions of the Witt algebra by a tensor density representation. In this paper we call such Lie algebras $\hat{\mathfrak{g}}_\lambda$,
Externí odkaz:
http://arxiv.org/abs/2407.12778
We propose mixed boundary conditions for 3d conformal gravity consistent with variational principle in its second-order formalism that admit the chiral $\Lambda$-$\mathfrak{bms}_4$ algebra as their asymptotic symmetry algebra. This algebra is one of
Externí odkaz:
http://arxiv.org/abs/2405.20244
Autor:
Mitman, Keefe, Boyle, Michael, Stein, Leo C., Deppe, Nils, Kidder, Lawrence E., Moxon, Jordan, Pfeiffer, Harald P., Scheel, Mark A., Teukolsky, Saul A., Throwe, William, Vu, Nils L.
Gravitational memory effects and the BMS freedoms exhibited at future null infinity have recently been resolved and utilized in numerical relativity simulations. With this, gravitational wave models and our understanding of the fundamental nature of
Externí odkaz:
http://arxiv.org/abs/2405.08868
Autor:
Rignon-Bret, Antoine, Speziale, Simone
We show that when the Wald-Zoupas prescription is implemented, the resulting charges realize the BMS symmetry algebra without any 2-cocycle nor central extension, at any cut of future null infinity. We refine the covariance prescription for applicati
Externí odkaz:
http://arxiv.org/abs/2405.01526