Karsten Danzmann

TL;DR: The cavity relations reveal that the three-port coupler can be designed such that the additional cavity port interferes destructively and the all-reflective, low-loss, single-end Fabry-Perot cavity becomes equivalent to a standard transmissive, two-port coupled cavity.

TL;DR: A scheme for a precision measurement of the 1/ital S/-2/ITAL S/ transition frequency in positronium and muonium is reported, and corrections to the two most recent experiments are presented which bring their results into agreement with theory.

TL;DR: In this article, an extension of the implemented coherent control scheme (Vahlbruch et al 2006 Phys. Rev. 97 011101) that allowed an increase in the long-term stability of the GEO 600 squeezed-light laser was presented.

TL;DR: The LISA technology package (LTP) is a dedicated ESA flight experiment for testing the drag-free control technology that must ensure purity of free fall in the LISA mission as mentioned in this paper.

TL;DR: In this article, the authors apply correlated noise identification and mitigation techniques to data taken by the two LIGO Hanford detectors, H1 and H2, during the fifth science run, and demonstrate techniques that will be useful for future searches using advanced detectors, where correlated noise from global magnetic fields may affect even widely separated detectors.