Discovery of 'Butterfly' Molecule Completes 20-Year Search in Quantum Physics
'Butterfly' molecule spotted at last, completing a 20-year quantum zoo hunt
Image: Phys.org
After two decades of research, physicists led by Herwig Ott at RPTU University Kaiserslautern-Landau in Germany have successfully created the 'butterfly' molecule, a unique ultralong-range Rydberg molecule. This discovery enhances our understanding of quantum structures and may pave the way for new experiments in ultracold anions.
- 01The 'butterfly' molecule is part of a family of ultralong-range Rydberg molecules, formed when an ordinary atom binds to a Rydberg atom.
- 02These molecules are characterized by their unique shapes, influenced by distant electrons, and are highly sensitive to electric fields.
- 03Creating the butterfly molecule required cooling rubidium atoms to nearly absolute zero and precise laser tuning over several weeks.
- 04The butterfly molecules measured approximately 25 nanometers across, larger than a DNA strand, and matched theoretical predictions in their characteristics.
- 05This breakthrough could lead to the creation of ultracold anions, enabling precision tests in fundamental physics and advancing antimatter research.
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Physicists have achieved a significant milestone by detecting the 'butterfly' molecule, completing a 20-year quest to identify a unique class of exotic molecules known as ultralong-range Rydberg molecules. Led by Herwig Ott at RPTU University Kaiserslautern-Landau in Germany, the team successfully created this molecule by cooling rubidium atoms to within a few millionths of a degree above absolute zero and employing a finely tuned sequence of laser pulses. The butterfly molecule, which measures about 25 nanometers across, exhibits a distinctive winged shape due to the behavior of its distant electrons. This discovery not only fills a gap in the quantum zoo of molecular structures but also opens new experimental avenues, particularly in the pursuit of ultracold anions. Such advancements could enhance our understanding of fundamental physics and contribute to antimatter research.
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