Tue April 25, 2023 3:30 pm
CUA Seminar – Eugene Polzik: Macroscopic objects in the quantum regime
Location:Harvard Pfizer Lecture Hall (Mallinckrodt 023)
Eugene Polzik, Niels Bohr Institute, University of Copenhagen
Studies of extreme cases within quantum mechanics have always been particularly attractive. How macroscopic can be an object and still demonstrate unique quantum features, such as entanglement? What are the real limits of measurement precision in quantum mechanics? I will review our experiments where macroscopic objects are driven deep into the quantum regime. Generation of an entangled Einstein-Podolsky-Rosen state between distant mechanical and atomic oscillators, the concept of an oscillator with an effective negative mass and progress towards application of those ideas to gravitational wave detection will be reported. Another challenge within quantum physics of macroscopic objects is generation of Fock states corresponding to single quantum excitations of an oscillator. Progress along those lines with Fock states of motion and of a macroscopic atomic ensemble will be presented. Finally, I will briefly review our work towards an atomic quantum simulator.
Please note the change of time and location!
3:30-4:30pm – Featured Seminar
4:30pm – Refreshments
The Mallinckrodt building requires a Harvard ID to access. Samantha will be at the entrance to let in anyone attending from MIT. Please see the map below showing where to enter the building:
