Mid-term colloquium, Hjalte Frellesvig – Niels Bohr Institute - University of Copenhagen

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Mid-term colloquium, Hjalte Frellesvig

Atomic clocks are the most precise clocks we have today.

Their primary source to imprecision is the uncertainty inherent in quantum mechanics, i.e. quantum noise. This uncertainty can be diminished by squeezing the spin of the particles forming the clock, such that entangled states of the atoms are formed.

Generating these sates is a challenge but it has been shown it is possible to form such spin squeezed states using a Bose-Einstein condensate. In this talk the theory behind this will be presented, and various related effects will be mentioned. In the end I will outline the work I am doing in my master thesis towards a different method of generating spin squeezing using Bose-Einstein condensates.