Volker Braun Title: Numerical Investigations into Calabi-Yau Compactifications Abstract: Using balanced metrics and gauge connections as an approximation scheme promises a numerical method to perform the Kaluza-Klein reduction. After calculating the metric, we compute the spectrum of the scalar Laplace operator on Calabi-Yau threefolds. For example, this gives new numerical evidence for the SYZ conjecture. Next, I will review the balanced approach towards Hermitian Yang-Mills connections. As an application, we can numerically determine the region of stability of a vector bundle in the Kahler moduli space.