Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/136, A-1040 Vienna, Austria.
Phys Rev Lett. 2013 Sep 20;111(12):121603. doi: 10.1103/PhysRevLett.111.121603. Epub 2013 Sep 19.
We present the first example of a nontrivial higher spin theory in three-dimensional flat space. We propose flat-space boundary conditions and prove their consistency for this theory. We find that the asymptotic symmetry algebra is a (centrally extended) higher spin generalization of the Bondi-Metzner-Sachs algebra, which we describe in detail. We also address higher spin analogues of flat space cosmology solutions and possible generalizations.
我们提出了三维平坦空间中非平凡高自旋理论的第一个例子。我们提出了平坦空间边界条件，并证明了它们对于该理论的一致性。我们发现，渐近对称代数是邦迪-米特斯纳-萨克斯代数的（中心扩展的）高自旋推广，我们对此进行了详细描述。我们还讨论了平坦空间宇宙学解的高自旋类似物以及可能的推广。
