A mixture of Bose and Fermi superfluids
| Autor: | Igor Ferrier-Barbut, M. Pierce, Christophe Salomon, Sébastien Laurent, Andrew T. Grier, Benno S. Rem, Marion Delehaye, Frédéric Chevy |
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| Rok vydání: | 2014 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Superconductivity Multidisciplinary Condensed matter physics Liquid helium Isotopes of lithium FOS: Physical sciences Macroscopic quantum phenomena Critical ionization velocity law.invention Superfluidity Coupling (physics) Quantum Gases (cond-mat.quant-gas) law Condensed Matter - Quantum Gases Fermi Gamma-ray Space Telescope |
| Zdroj: | Science. 345:1035-1038 |
| ISSN: | 1095-9203 0036-8075 |
| DOI: | 10.1126/science.1255380 |
| Popis: | Making a superfluid lithium mixture At some of the coldest temperatures achieved in the laboratory, researchers can coax dilute gases of atoms into becoming a superfluid, with the whole gas behaving as one entity. Bosonic atoms, which like to congregate in one state, achieve this willingly. Fermions, which effectively repel each other, require more persuasion. Ferrier-Barbut et al. made a superfluid mixture of two gases, one made up of bosons and one of fermions. They used two isotopes of lithium, fermionic 6 Li and bosonic 7 Li. When they made the mixture oscillate, the two components took turns feeding energy into each other. Science , this issue p. 1035 |
| Databáze: | OpenAIRE |
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