25 Euro Quantum Physics

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Reversbeschreibung	The reverse commemorates the pioneering quantum entanglement experiments of Austrian physicist Anton Zeilinger. The niobium centre depicts two entangled particles with opposing spins, illustrating the phenomenon of quantum entanglement at the heart of Zeilinger's research. Radiating outward, a simplified schematic of the experimental apparatus is shown, identifying the two measurement stations designated ALICE (A) and BOB (B), connected by both a quantum channel (QUANTENKANAL) and a classical channel (KLASSISCHER KANAL), with the EPR designation referencing the Einstein–Podolsky–Rosen paradox. The inscribed legend QUANTENPHYSIK appears prominently within the field, and the station labels and channel designations are distributed across the silver ring in Latin script.
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Reverslegende	QUANTENPHYSIK KLASSISCHER KANAL A ALICE EPR B BOB QUANTEN KANAL
Rand	Plain
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