Articles tagged with Fermions
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Researchers have discovered conditions for mixing boson-type atoms with fermion-type ones, allowing experimental physicists to design new experiments. They also found that fermions increase the superfluid state in a system with three dimensions of bosons.
The discovery reveals a fundamental interest in understanding the electronic properties of graphene and its potential applications. The researchers have created multiple clones of Dirac fermions, mimicking massless relativistic particles, and produced an intricate pattern known as the Hofstadter butterfly.
Engineers at the University of Utah have shown that it is feasible to create organic topological insulators, which can conduct electricity on their edges but act as an insulator inside. This discovery could enable faster-than-light information transfer in quantum computers and spintronics devices.
Physicists have discovered collective behavior in fermions at short wavelengths, contradicting previous assumptions about the behavior of these particles. The study uses mathematical tools to accurately predict the behavior of fermions and bosons in different situations.
Researchers used neutron scattering to observe zero-sound oscillations in a fermion liquid, which could be a mechanism for high-temperature superconductivity. The discovery reveals new density waves with atomic wavelength in the helium fluid, differing from previous findings in bulk liquids.
Researchers created a record-breaking gas mixture of Lithium 6 and Potassium 40 using an ultra-freeze trap, increasing the number of atoms under study to a few billion. This breakthrough will aid in simulating subatomic-scale phenomena and understanding quantum mechanical effects in neutron stars.
Theoretical physicists propose a new method to create and detect anyons, exotic particles with continuously variable statistics. This breakthrough could lead to the development of more efficient quantum computers.
Researchers at MIT have created ultracold gas clouds that repel each other, unlike normal gases. This discovery could help explain the behavior of high-temperature superconductors and neutron stars.
Physicists at UC Berkeley confirm that photons do not act like fermions, validating Bose-Einstein statistics and Quantum Field Theory. The experiment tested the fundamental assumptions underlying these theories, including Lorentz invariance and microcausality.
Researchers have made significant breakthroughs in creating ultra-precise atomic clocks using fermions at near absolute zero temperatures. The new method enables the control of fermion interactions and avoids the loss of precision, leading to a three-fold increase in clock accuracy. This advancement has great potential for applications...
Researchers at JILA have successfully controlled collisions between fermions, allowing for a significant boost in atomic clock accuracy. By understanding the dynamic effect of measurement processes, they reduced uncertainties in clock operation, making it 50% more accurate than previous results.
Researchers at Ohio State University have discovered a method to compress atoms in an optical lattice until heat is squeezed out and into a surrounding ultra-cold Bose-Einstein condensate, which can absorb and evaporate the heat away. This new approach aims to overcome temperature as a bottleneck for the creation of light crystals.
Researchers at Duke University and Brookhaven National Laboratory have observed striking similarities between ultracold gas clouds and ultrahot plasmas. Both exhibit near-perfect fluid flow and anisotropic expansion, expanding like 'exploding cigars'.
Scientists have demonstrated that fermions, particles predicted by quantum mechanics to avoid close proximity, indeed exhibit an 'anti-bunching' effect, repelling each other due to quantum interferences. This finding enables the detection of correlations between atoms and advances our understanding of matter at the quantum scale.
Physicists have observed an elusive quantum state where fermions with mismatched numbers of dance partners exhibit unbalanced superfluid behavior. This finding has opened new avenues for investigation, particularly in the context of exotic matter found in Quark Stars.
For the first time, researchers at Rice University have succeeded in creating and observing an elusive and long-sought quantum state. The team cooled a mixture of fermionic lithium-6 atoms to extremely low temperatures, allowing them to study superfluidity with precision.
Researchers at Georgia Tech discovered that bosons placed in two-dimensional harmonic traps will crystallize when their repulsive interactions are increased. Theoretical simulations showed six bosons forming a polygonal crystal with one boson in the center.
Researchers at Max-Planck-Institute for Quantum Optics and Johannes Gutenberg-University of Mainz successfully fermionize a gas of bosonic atoms, creating a Tonks-Girardeau gas. The resulting state exhibits unique properties that blur the distinction between bosonic and fermionic behavior.
Physicists at JILA have observed a novel form of matter, a fermionic condensate, by cooling potassium atoms to extremely low temperatures and applying a magnetic field. The formation of these pairs has potential implications for high-temperature superconductivity and energy efficiency.
Researchers Chan and Kim create a supersolid by compressing helium-4 gas into a glass disk with miniature pores at extremely low temperatures. The experiment suggests that all three states of matter can enter the 'super' state, known as Bose-Einstein condensation.
NIST/University of Colorado researchers create a Bose-Einstein condensate of weakly bound molecules from a gas of fermionic potassium atoms cooled to 150 nanoKelvin. The molecular condensate was produced by passing through conditions that mimic fermionic superfluidity, paving the way for further research into this phenomenon.
Researchers at NIST's JILA have successfully paired individual potassium atoms into boson molecules, a breakthrough towards creating a quantum 'super molecule'. The technique could improve understanding of superconductivity and high-temperature superconductivity.