Quantum ‘fifth state of matter’ observed in space for first time

Phys.org  June 11, 2020 Scientists believe Bose-Einstein Condensates (BEC) contain vital clues to mysterious phenomena such as dark energy. As they are extremely fragile it is nearly impossible for scientists to study BEC on Earth, where gravity interferes with the magnetic fields required to hold them in place for observation. Last week a team of NASA scientists unveiled the first results from BEC experiments aboard the International Space Station, where particles can be manipulated. An international team of researchers (USA -Caltech, Germany) documents several startling differences in the properties of BECs created on Earth and those aboard the ISS. BECs […]

Exotic state of matter: An atom full of atoms

Science Daily  February 26, 2018 An international team of researchers (USA – Rice University, MIT, Switzerland, Brazil, Austria, Germany) reports spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. As computer simulations show, this comparatively weak kind of interaction decreases the total energy of the system, and so a bond between the Rydberg atom and the other atoms inside the electronic orbit is created. This new, weakly bound state of matter is an exciting new possibility of investigating the physics of ultracold atoms… read […]