Quantum Entanglement - Theory and Experiments
Lecturer: Prof. Dr. Markus Oberthaler
Link to LSF
Quantum Entanglement – Theory and Experiment
In the 1930’s, the famous Einstein—Podolsky—Rosen paradox first pointed out that quantum mechanics permits entangled states that are classically impossible. The discussion triggered by this paradox initially remained on a rather abstract level, until Bell formulated his inequalities that would allow for an experimental test. Still, for a long time the concept of entanglement remained rather academic. Only recently has it been realized that it constitutes a resource to perform tasks better than what would be allowed by classical physics. In particular, entanglement in multi-particle systems permits improved metrological precision and offers computational power beyond the capabilities of classical computers. Even more, in the last years it has become apparent that there are deeply quantum-mechanical states of matter that are uniquely characterized by their entanglement properties. Today, there are more open questions related to many-particle entanglement than ever. While experiments aim at harnessing it for technological applications, theory works at understanding its fundamental implications for many-body states.
In this Master seminar, we will reenact the evolution of entanglement in quantum mechanics. We will discuss some of the most important historical works, study modern applications and recent discoveries, until we reach the limits of current knowledge and ongoing research.
First seminar: EPR
In the first seminar, we will discuss the Einstein-Podolski-Rosen paradoxon. Anyone may have to present it and everyone should participate in the discussion, so please be prepared.
The reference is:
A. Einstein, B. Podolsky, N. Rosen: Can quantum-mechanical description of physical reality be considered complete?, Phys. Rev. 47 (1935), S. 777–780 doi:10.1103/PhysRev.47.777
- Group Teilnehmer/innen
Link zum LSF