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Titania-doped tantala/silica coatings for gravitational-wave detection
Gregory M. Harry, Matthew R. Abernathy, Andres E. Becerra-Toledo +23
Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-waves detectors. Here we show that add…
100 km secure differential phase shift quantum key distribution with low jitter up-conversion detectors
Eleni Diamanti, Hiroki Takesue, Carsten Langrock +2
We present a quantum key distribution experiment in which keys that were secure against all individual eavesdropping attacks allowed by quantum mechanics were distributed over 100…
High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
Jing Xia, Maeno Yoshiteru, Peter T. Beyersdorf +2
Polar Kerr effect in the spin-triplet superconductor Sr2RuO4 was measured with high precision using a Sagnac interferometer with a zero-area Sagnac loop. We observed non-zero Kerr…
Coherent searches for periodic gravitational waves from unknown isolated sources and Scorpius X-1: results from the second LIGO science run
The LIGO Scientific Collaboration
We carry out two searches for periodic gravitational waves using the most sensitive few hours of data from the second LIGO science run. The first search is targeted at isolated, pr…
Modified Sagnac interferometer for high-sensitivity magneto-optic measurements atcryogenic temperatures
Jing Xia, Peter T. Beyersdorf, Martin M. Fejer +1
We describe a geometry for a Sagnac interferometer with a zero-area Sagnac loop for measuring magneto-optic Kerr effect (MOKE) at cryogenic temperatures. The apparatus is capable o…