Quantum Optics Group (LMU) - Quantum Many Body Systems Division (MPQ)

Spin Dependent Transport

Controlled interactions with spin dependent lattice potentials

Controlled interactions between atoms on different lattice sites can be realized with the help of spin-dependent lattice potentials. In such spin dependent potentials, atoms in a, let us say, blue internal state experience a different lattice potential than atoms in a red internal state. These lattices can be moved relative to each other such that two initially separated atoms can be brought into controlled contact with each other.

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Delocalizing an atom by hand

With the help of a series of π/2- and π microwave pulses together an electro-optical modulator (EOM) it is possible to delocalize an atom in a completely controlled way over an arbitrary number of lattice site.

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Matter wave interference patterns of atoms that have been coherently split over different lattice sites

By releasing the coherently split atom from the lattice trapping potential one can observe a double slit intereference pattern. This period of such an interference pattern becomes shortert the further the two wavepackets ahve been separated

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Max Planck Institute of Quantum Optics

Hans-Kopfermann-Str. 1
85748 Garching, Germany 

Phone: +49 (0)89 32905 - 138 
Fax: +49 (0)89 32905 - 313

Kristina Schuldt

Quantum Optics Chair/
Fakultät für Physik 

Schellingstr. 4
80799 Munich, Germany

Phone: +49 (0)89 2180 - 6131
Fax: +49 (0)89 2180 - 63850

Ildiko Kecskesi