DPG Phi
Verhandlungen
Verhandlungen
DPG

Erlangen 2022 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 36: Optomechanics II

Q 36.2: Talk

Wednesday, March 16, 2022, 14:15–14:30, Q-H13

Testing quantum mechanics with heavy objects – using magnetically-levitated superconducting microparticles — •Gerard Higgins1,2, Joachim Hofer3, Philip Schmidt1, Stefan Minniberger3, Jannek Hansen3, Michael Trupke1,3, Markus Aspelmeyer1,3, Martí Gutierrez Latorre2, Achintya Paradkar2, Avan Mirkhan2, and Witlef Wieczorek21IQOQI, Vienna, Austria — 2Chalmers University of Technology, Gothenburg, Sweden — 3Vienna Centre for Quantum Science and Technology, Austria

It is unclear how our classical world emerges from the quantum world. It is also unclear how to incorporate effects of gravity into quantum mechanics. To get experimental insights into these problems, we need to prepare larger masses in quantum states.

Magnetically-levitated superconducting microparticles make promising systems for doing this. We work with a lead microsphere of ∼1018 amu (∼1 µg) which we isolate from its surroundings using magnetic levitation. We read out the sphere’s COM motion using a SQUID and cool the motion by applying additional magnetic fields. We will extend our control by coupling the sphere’s motion to superconducting resonators and qubits.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2022 > Erlangen