110 citations · 1.8k across the 99 of their papers we have counts for
4 papers · 1 filter
The AdS3 central charge in string theory
Jan Troost
We evaluate the vacuum expectation value of the central charge operator in string theory in an AdS3 vacuum. Our calculation provides a rare non-zero one-point function on a spheric…
The heterotic string at high temperature (or with strong supersymmetry breaking)
Waldemar Schulgin, Jan Troost
Perturbative heterotic string theory develops a single complex tachyonic mode beyond the Hagedorn temperature. We calculate the quartic effective potential for this tachyonic mode…
Massless particles on supergroups and AdS3 x S3 supergravity
Jan Troost
Firstly, we study the state space of a massless particle on a supergroup with a reparameterization invariant action. After gauge fixing the reparameterization invariance, we comput…
A Twisted Non-compact Elliptic Genus
Sujay K. Ashok, Jan Troost
We give a detailed path integral derivation of the elliptic genus of a supersymmetric coset conformal field theory, further twisted by a global U(1) symmetry. It gives rise to a Ja…