Yearbook 2007

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Optical microcavities store resonant light for millions of round-trips. The high sensitivity of the resonance condition enables the direct observation of Brownian motion and the detection of biological molecules. The resonant power enhancement gives rise to novel nonlinear processes due to light forces exerted on the resonator as well as an extreme form of the Kerr nonlinearity, which transforms a continuous-wave laser into a frequency comb. more
A deeper insight into complex quantum systems requires computer simulations to improve by a large amount. This could in principle be done by a universal quantum computer, its experimental set up is however a decade away. For certain tasks, e.g. the simulation of quantum magnetism or high-temperature supraconductivity, an analog quantum simulator could be a short cut. A very promising concept is an ion trap with the ions serving as quantum bits. more
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