Monday 08 February 2016
to 14:15 at
Georgios Linardopoulos (NCSR "Demokritos" and U. of Athens)
A new infinite-size limit of strings in RxS2 is presented. The limit is obtained from single spike strings by letting their angular velocity omega become infinite. We derive the energy-momenta relation of omega-infinity single spikes as their linear velocity v-->1 and their angular momentum J-->1. Generally, the v-->1, J-->1 limit of single spikes is singular and has to be excluded from the spectrum and be studied separately. We discover that the dispersion relation of omega-infinity single spikes contains logarithms in the limit J-->1. This result is somewhat unexpected, since the logarithmic behavior in the string spectra is typically associated with their motion in non-compact spaces such as AdS.