3 citations · 3 across the 1 of their papers we have counts for
1 paper · 1 filter
Gang Chen, Yeuk-Kwan E. Cheung, Zheyong Fan +2
We prove a no-ghost theorem for a bosonic string propagating in Nappi-Witten spacetime. This is achieved in two steps. We first demonstrate unitarity for a class of NW/U(1) modules…