Author:
Álvarez Enrique,Anero Jesús,Sánchez-Ruiz Irene
Abstract
AbstractGravitational plane waves (when Ricci flat) belong to the VSI family. The achronym VSI stands for vanishing scalar invariants, meaning that all scalar invariants built out of Riemann tensor and its derivatives vanish, although the Riemann tensor itself does not. In the particular case of plane waves many interesting phenomena have been uncovered for strings propagating in this background. Here we comment on gravitons propagating in such a spacetime.
Publisher
Springer Science and Business Media LLC