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Search results for fermionic model

Quantum Âé¶¹ÒùÔºics Feb 7, 2022

Kinks, skinks and supersymmetry

Supersymmetry is symmetry of nature that is often hypothesized to exist among elementary particles. In a new paper that appeared in Âé¶¹ÒùÔºical Review Letters this week, physicists from the University of Amsterdam and QuSoft ...

Quantum Âé¶¹ÒùÔºics Jan 27, 2022

Rare Kondo phenomenon found in transition metal oxide, furthering decade-long debate

As temperature decreases, so does the electrical resistance of metals—most of the time. In metal with magnetic impurities, electrical resistance can increase as the temperature drops due to a strange phenomenon called the ...

Quantum Âé¶¹ÒùÔºics Jan 20, 2022

Towards compact quantum computers thanks to topology

Researchers at PSI have compared the electron distribution below the oxide layer of two semiconductors. The investigation is part of an effort to develop particularly stable quantum bits—and thus, in turn, particularly ...

Condensed Matter Jan 12, 2022

Newly discovered type of 'strange metal' could lead to deep insights

Scientists understand quite well how temperature affects electrical conductance in most everyday metals like copper or silver. But in recent years, researchers have turned their attention to a class of materials that do not ...

General Âé¶¹ÒùÔºics Jan 6, 2022

Evidence of a quantum phase transition without symmetry breaking in cerium-cobalt-indium 5

Over the past few decades, many condensed matter physicists have conducted research focusing on quantum phase transitions that are not clearly associated with a broken symmetry. One reason that these transitions are interesting ...

General Âé¶¹ÒùÔºics Dec 18, 2021

Maybe 'boson clouds' could explain dark matter

The nature of dark matter continues to perplex astronomers. As the search for dark matter particles continues to turn up nothing, it's tempting to throw out the dark matter model altogether, but indirect evidence for the ...

Condensed Matter Dec 10, 2021

Leptoquarks and the physics beyond the Standard Model

The hunt is on for leptoquarks, particles beyond the limits of the standard model of particle physics —the best description we have so far of the physics that governs the forces of the Universe and its particles. These ...

Quantum Âé¶¹ÒùÔºics Oct 26, 2021

Dynamical scaling of entanglement entropy and surface roughness in random quantum systems

In physics, "universality" refers to properties of systems that are independent of their details. Establishing the universality of quantum dynamics is one of the key interests of theoretical physicists. Now, researchers from ...

Quantum Âé¶¹ÒùÔºics Sep 3, 2021

Unraveling quantum interactions of 100,000 atoms in gases

Silvia Musolino defended her Ph.D. on new theoretical insights in quantum physics by studying gases at the lowest temperatures consisting of many atoms.

Condensed Matter Aug 26, 2021

Study unveils strain-induced quantum phase transitions in magic-angle graphene

Over the past few years, many physicists and material scientists worldwide have been investigating the properties and characteristics of magic-angle twisted bilayer graphene (MATBG). MATBG is a strongly correlated material ...

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