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27 Μαΐ 2024 · Fermionic condensates represent a captivating phase of matter where particles known as fermions pair up and behave collectively in a quantum state. This phenomenon, observed at extremely low temperatures, challenges our conventional understanding of matter and opens new avenues in quantum physics.
A fermionic condensate (or Fermi–Dirac condensate) is a superfluid phase formed by fermionic particles at low temperatures. It is closely related to the Bose–Einstein condensate, a superfluid phase formed by bosonic atoms under similar conditions.
Fermionic Condensate: A quantum state of matter formed by pairing fermions under ultra-cold conditions, allowing them to behave similarly to bosons. Key Characteristics: Includes superfluidity, superconductivity, and anisotropic pairing, which have implications for future technological advancements.
To form the new fermionic condensate, the JILA researchers exploited the Feshbach resonance in two ways in a gas of potassium-40 atoms. First, they tuned the magnetic field to a value corresponding to an effective interparticle attraction, and allowed the gas to equilibrate.
7 Αυγ 2020 · In electron systems featuring a fermion condensate, the magnitude of the gap appearing in the single-particle spectrum owing to Cooper pairing is shown to be much larger than that in Bardeen–Cooper–Schrieffer (BCS) theory.
Experimental work on gases of fermionic atoms in particular has seen large recent progress including the attainment of so-called Fermi condensates. In this article we will discuss this recent development and the unique control over interparticle interactions that made it possible.
These condensates offer insights into frictionless transport, advanced electrical applications, and the fundamental behavior of matter. Their study could impact quantum computing, precision measurement, and the development of lossless electrical conductors.
