Europhysics Letters (EPL)Comments on the Thermal Virasoro AmplitudeHaruo FujisakiPublished May 15, 1992• 8 citationsPublisherAbstractThe new-fashioned four-tachyon tree amplitude of closed bosonic thermal strings is examined within the dispersion-theoretic approach based upon the thermofield dynamics.DOI10.1209/0295-5075/19/2/003