5th Institute of Physics
 
 
 
 

Robert Löw Photo
address 5. Physikalisches Institut
Universität Stuttgart
Pfaffenwaldring 57
D-70569 Stuttgart
phone.: +49 711 685 64954
room: 4.158
email: email

Research
Publications
Teaching
Curriculum vitae

Research interests:

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Frozen Rydberg gases
The combination of ultracold gases in combination with strongly interacting Rydberg atoms offers a new route to study strongly interacting many body quantum systems. The main focus of our research lies on the coherent properties of such many body quantum systems and their dynamical evolution when driven with a laser field. Recently we have been focusing on resonant interactions between Rydberg atoms, so called Förster resonances, which allow to tune the interaction potential from van-der-Waals to dipole-dipole type by an external electric field. More details can be found on the project webpage:
Ultracold Rydberg group


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Ultra-longrange Rydberg moleculs
When a Rydberg atom is excited in a dense sample of ultracold atoms, it may happen that another close by ground state atom resides within the Orbit of the Rydberg electron. Surprisingly produces the collision of the electron with the neutral atom an effective attraction, resulting in a bound dimer with a inter-nuclear spacing of more than 100nm. This uncommon binding mechanism is responsible for a variety of peuliar properties as the existence of a permanent dipole moment in a homonuclear molecule, or the possible to stabilize the bound state by quantum reflection. More details can be found on the project webpage:
Ultracold Rydberg group


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Microscopic vapor cells
Rydberg atoms can not only be excited in an ultracold gas of atoms, but also at room temperature. At sufficient hight densities, comparable to the densities used in the ultracold ensembles, we are also be able to observe the strong interactions between Rydberg atoms. In the end we do not want to only observe these interactions but also to exploit them to produce optical non-linearities on the single photons to realize a single photon source operating at room temperature. More details can be found on the project webpage:
Microscopic vapor cells


Funded projects:
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Hybrid optical fibers
This project, funded in the framework of the Elite program of the BW Stiftung, is dedicated to explore the possibilities to hybridize optical fibers, electric circuits and atomic vapors to produce novel devices for electro-optical applications.
Microscopic vapor cells


Robert Löw Photo
Mikro2Sens
This project, funded by the BW Stiftung within the Photonics BW network, is dedicated to develop a fully fiber based spectroscopy cell for non-invasive and sensitive measurements of microwave radiation.
Microscopic vapor cells


Robert Löw Photo
Rydberg molecules
This project, funded by the DFG, is dedicated to study the dipolar character of ultra-longrange Rydberg molecules, their dynamical properties and various mechanisms leading to their decay.
Ultracold Rydberg group

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