News & Events

HEPL / KIPAC Seminar

Wednesday, June 11, 2014

Natalia Bruno

Group of Applied Physics, University of Geneva, Switzerland

Displacement of Entanglement Back and Forth between the Micro and Macro Domains

Abstract: Quantum theory has historically been presented as the theory describing the microscopic world. However, the technological progress of the last decades is now allowing us to experimentally test the theory in different regimes. Many questions can be raised at this point, e.g. whether quantum mechanics applies at any scale, and what is the meaning of “macroscopic”.

Probing these questions using accessible tools like linear optics is a fascinating challenge. I will present an experiment that shows the presence of quantum superposition (entanglement) in a macroscopic state of light. The number of photons involved in the system is of the order of 1000, large enough to be easily seen by the human eye (provided that the wavelength is in the visible spectrum).

Time: 4:00 – 5:00pm

Location: Physics/Astrophysics Bldg., Kistler Conference Rooms 102/103 (Map)

(Light refreshments available 4:00pm; Presentation begis 4:15pm)

Open to All