Quantum Metrology and Fundamental Physics - University Tübingen, Germany

Session

Wednesday Morning 1

15 Jul 2026, 08:50

2. Bounds on the strength of a spin-independent fifth force: Current reach of hydrogen and helium spectroscopy

Dr Robert Potvliege (Durham University, Physics Department)

15/07/2026, 09:00

Session 1

It has long been recognised that high‑precision hydrogen spectroscopy places stringent bounds on the strength of a hypothetical new spin‑independent interaction [1,2]. The earlier work in this area has since been extended to the spectroscopy of deuterium, muonic hydrogen, muonic deuterium, helium and muonic helium [3-6], as well as to other theoretical and experimental inputs [7]. These later...

1. Searching for ultralight bosons with quantum sensors

Tanmay Kumar Poddar (IPPP, Durham University)

15/07/2026, 09:45

Session 1

Ultralight bosons provide well-motivated candidates for physics beyond the Standard Model and may couple weakly to photons or fermions. If sourced by laboratory-scale objects, such fields can generate long-range potentials that imprint measurable phase shifts or induce currents in superconducting Josephson systems. In particular, an oscillating axion dark matter background can produce an...