Issued by Austria in 2026, this coin features a combination of silver and niobium. Its face value is 25 euros. It is dedicated to the theme of quantum physics.

The use of silver gives the coin a classic silver color. The niobium introduces a distinctive color element, offering the possibility of creating original visual effects depending on the arrangement and combination of the two metals. The theme of quantum physics suggests a potentially complex and abstract design, reflecting the fundamental concepts of this scientific discipline.

OBVERSE 

⁣⁢The obverse of this coin presents a dynamic visual interpretation of Quantum Physics, centered on a stylized quantum system that illustrates information exchange through a quantum channel. Abstract particles, wave forms, and directional arrows represent quantum states, entanglement, and probability, while the vibrant niobium coloring enhances the sense of movement and energy in the design. Scientific references and symbolic labels evoke the dialogue between theory and experiment, highlighting the invisible mechanisms that govern reality at the smallest scale. Along the edge, inscriptions include "QUANTENPHYSIK" and "QUANTENKANAL," reinforcing the scientific theme of the composition.⁤⁣

REVERSE

The reverse of the coin features a captivating depiction of quantum duality, symbolized by a feline figure inspired by Schrödinger's famous thought experiment. Rendered in bold, contrasting colors, the image reflects the coexistence of multiple states and the uncertainty at the heart of quantum mechanics. The surrounding background incorporates scientific markings, abstract diagrams, and symbolic references to radiation and measurement, creating a layered narrative that blends science, philosophy, and imagination. Around the design, the inscriptions read: "REPUBLIK ÖSTERREICH" – the issuing country, "25 EURO" – the face value, and "2026" – the year of minting.