Synthetic Quantum Systems Kirchhoff Institut fr Physik Heidelberg
Synthetic Quantum Systems / Kirchhoff Institut für Physik / Heidelberg University Matterwave interferometry beyond classical limits www. matterwave. de
How does an apple drop? Precision limits: size of apple Precision of the ruler Precision of time Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
How does an apple drop? precision limit: size of the apple atom precision limit: size of the atom? Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
quantum 1924 mechanics De Broglie a particle h = 0. 000 000 000 662 606 Js m = 0. 000 000 1 kg wavelength is smaller than the atom size ! Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
quantum interference mechanics smaller than the size of the atom wavelength Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
quantum mechanics probability interference position Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
quantum mechanics interference – ‚classical‘ limit Steven Chu/Nobel Preis 1997 3 10 -7 g
number of atoms Quantum mechanics Interference – ‚classical‘ limit Steven Chu/Nobel Preis 1997 why is this point not on the line?
quantum mechanics interference – ‚classical‘ limit √Nit probability position is only know within an uncertainty, due to final number of particles statistics c i s i c e r p l a m i l on c i s s la Synthetic Quantum Systems / Markus Oberthaler position www. matterwave. de
Bose Einstein condensation Many particle quantum physics Cornell Ketterle Wieman Nobel price 2001 300°K atoms are like apples/balls Synthetic Quantum Systems / Markus Oberthaler 0. 000 001°K wave nature becomes important 0. 000 01°K all atoms are in lock step www. matterwave. de
Bose Einstein condensation the experimental steps laser cooling room temperature surface of the sun liquid Helium Doppler limit recoil limit temperature [K] www. colorado. edu/physics/2000/bec/
temperature scale or. . room temperature surface of the sun Kapitsa, Penzias, Wilson Nobel price 1978 Bednorz, Müller Nobel price 1987 William F. Giauque Nobel price 1949 liquid Helium laser cooling Doppler limit temperature [K] recoil limit Cornell, Ketterle, Wieman Nobel price 2001 Lee, Osherov, Richardson Nobel price 1996 Abrikosov, Ginzburg, Leggett Nobel price 2003 Bethe Nobel price 1967 Kamerlingh Onnes Nobel price 1913 Chu, Cohen-Tannoudji, Phillips Nobel price 1997
in real life ? combine low with high-tech 2004 2011 2004 2008 2004 Synthetic Quantum Systems / Markus µ Oberthaler www. matterwave. de
many particle interference overlapping condensates Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
many independent particles what is different to Chu‘s experiment Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
precision is gained by repetition what do many experiments give Synthetic Quantum Systems / Markus Oberthaler √N www. matterwave. de
N condensed particles is different to N independent particles T=0 Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
fluctuations of particle number squeezed matterwaves statistics Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
fluctuations of particle number squeezed matterwaves propability Mach-Zehnder interferometer position Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
fluctuations of particle number squeezed matterwaves propability Mach-Zehnder interferometer position Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
precision beyond the classical limit many particle quantum physics Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
quantum metrology sensors beyond tomorrow classical precision limit 1 minute witin the age of the universe Nature 455, 1216 (2008) Nature 464, 1165 (2010) Synthetic Quantum Systems / Markus Oberthaler www. matterwave. de
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