Date:
Sun, 30/04/201712:00-13:30
Location:
Danciger B building, Seminar room
Lecturer: Prof. Dieter Meschede
Affiliation: IAP Institute, University of Bonn
Abstract:
In the bottom-up approach isolated atoms are used to engineer small quantum systems involving single, few or many atom systems. We will discuss two examples:
I will show that controlled interaction of atoms with a high finesse optical resonator can lead to a strongly preferred emission of light into optical wave guides (Purcell effects) which is useful for future interconnects in quantum networks. In a second experiment collective radiation of a two atom system experiences cavity back action.
In our quantum walk experiment we operate a new tool realizing spin dependent and coherent transport of atoms over tens of lattice sites. I will discuss an atom remake of the well known Elitzur-Vaidman "bomb test" experiment which is interpreted in terms of an ideal negative measurement showing strong violation of the Leggett-Gard inequality. The experiment quantitatively distinguishes the quantum from the macro realist’s world. The new transport device also allows to spin dependently transport atoms in 2D space promising e.g. retro engineering of low entropy Mott states. First evidence of quantum indistinguishability is opening up a new window to study interacting few body systems in unusual lattice settings including very strong pseudo magnetic fields and topologically interesting situations.
Affiliation: IAP Institute, University of Bonn
Abstract:
In the bottom-up approach isolated atoms are used to engineer small quantum systems involving single, few or many atom systems. We will discuss two examples:
I will show that controlled interaction of atoms with a high finesse optical resonator can lead to a strongly preferred emission of light into optical wave guides (Purcell effects) which is useful for future interconnects in quantum networks. In a second experiment collective radiation of a two atom system experiences cavity back action.
In our quantum walk experiment we operate a new tool realizing spin dependent and coherent transport of atoms over tens of lattice sites. I will discuss an atom remake of the well known Elitzur-Vaidman "bomb test" experiment which is interpreted in terms of an ideal negative measurement showing strong violation of the Leggett-Gard inequality. The experiment quantitatively distinguishes the quantum from the macro realist’s world. The new transport device also allows to spin dependently transport atoms in 2D space promising e.g. retro engineering of low entropy Mott states. First evidence of quantum indistinguishability is opening up a new window to study interacting few body systems in unusual lattice settings including very strong pseudo magnetic fields and topologically interesting situations.