25 Euro - Niobium - Quantum Physics - Austria - 2026 - SU

25 Euro Silver/Niobium coin dedicated to two central milestones in modern physics, Special Uncirculated.
The world of quantum physics reveals a reality beyond the visible: electrons, photons and atoms do not behave like classical objects, but exist as possibilities that are only determined through observation. Instead of fixed states, probabilities, superposition, entanglement and uncertainty determine nature – insights that have revolutionised our understanding of space and time. Many everyday technologies are already based on this, from lasers and computer chips to GPS and MRI.
One side of the coin depicts the famous thought experiment ‘Schrödinger's cat’, while the other shows Anton Zeilinger's experimental set-up for quantum entanglement.