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Limits RegistryMarkus Arndt's group at the University of Vienna sent functionalized oligoporphyrin molecules of up to about 2,000 atoms and more than 25,000 atomic mass units through a 2-metre long-baseline matter-wave interferometer and observed quantum interference fringes. Published in Nature Physics in 2019, it was the largest quantum superposition of freely propagating particles demonstrated.
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Markus Arndt's group at the University of Vienna sent functionalized oligoporphyrin molecules of up to about 2,000 atoms and more than 25,000 atomic mass units through a 2-metre long-baseline matter-wave interferometer and observed quantum interference fringes. Published in Nature Physics in 2019, it was the largest quantum superposition of freely propagating particles demonstrated.
The largest molecular mass for which de Broglie matter-wave interference of individual particles has been demonstrated.
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Limits Registry. LR-LARGEST-MOLECULE-MATTER-WAVE-INTERFERENCE. Most massive molecules to show matter-wave interference. 2026.