In the quantum world, things sometimes seem to be out of order. On March 14, Prof. Heiko Krabbe and Dr. Marco Seiter will take the audience on a journey through this crazy world. They will bring along their quantum experiment kit. We cordially invite you to the last edition of Saturday Morning Physics in the winter semester 2025/26.
Quantum physics is a cornerstone of modern physics, but it is considered mysterious and contradictory to everyday understanding. Its central principles can be visualized through experiments with light quanta, also known as photons. In this lecture, we take you on a journey into the world of single photons: We look at experiments with beam splitters and interferometers that show that light particles do not simply function like tiny balls or waves, but can exhibit properties of both at the same time – and change their behavior depending on the experimental setup. These experiments allow us to experience what superposition, interference, and measurement mean at their core and why quantum physics challenges our classical understanding of reality. The aim of the lecture is to make the fundamental characteristics of the quantum world understandable.
Prof. Heiko Krabbe and Dr. Marco Seiter
When?March 14, 2026, 11 a.m.
Where? St. Paul's Church in downtown Bochum, Grabenstraße 9
Admission is free. Starting at10:30 a.m., the student council will provide visitors with waffles and coffee and welcomes small donations.
Saturday Morning Physics is held in cooperation with the Evangelical Church Parish of Bochum on five Saturdays during the 2025/26 winter semester at the Pauluskirche. The next round of Saturday Morning Physics is planned for fall 2026.
Photos by Heiko Krabbe & Marco Seiter: © RUB, Marquard