Search results for fermionic model

Quantum Physics Jul 23, 2020

Quantum physicists crack mystery of 'strange metals,' a new state of matter

Even by the standards of quantum physicists, strange metals are just plain odd. The materials are related to high-temperature superconductors and have surprising connections to the properties of black holes. Electrons in ...

Quantum Physics Jul 23, 2020

Scientists discover a topological magnet that exhibits exotic quantum effects

An international team led by researchers at Princeton University has uncovered a new class of magnet that exhibits novel quantum effects that extend to room temperature.

Quantum Physics Jul 2, 2020

A three-dimensional phase diagram of heavy-fermion compound with competing quantum phases

URu2Si2 is a metal that belongs to the family of heavy-fermion compounds in which several quantum phases (e.g., magnetism and superconductivity) can compete or coexist. These metals exhibit small energy scales that are easy ...

Quantum Physics Jun 18, 2020

New connections between quantum computing and machine learning in computational chemistry 

Quantum computing promises to improve our ability to perform some critical computational tasks in the future. Machine learning is changing the way we use computers in our present everyday life and in science. It is natural ...

Quantum Physics Jun 18, 2020

Quantum rings in the grip of laser light

Ultracold atoms trapped in appropriately prepared optical traps can arrange themselves in surprisingly complex, hitherto unobserved structures, according to scientists from the Institute of Nuclear Physics of the Polish Academy ...

General Physics May 5, 2020

Study: Could dark matter be hiding in existing data?

Dark matter has so far defied every type of detector designed to find it. Because of its huge gravitational footprint in space, we know dark matter must make up about 85 percent of the total mass of the universe, but we don't ...

Quantum Physics Apr 10, 2020

Anyon evidence observed using tiny anyon collider

A team of researchers from Sorbonne Université, CNRS and Ecole Normale Supérieure has reported observational evidence of a quasiparticle called an anyon. In their paper published in the journal Science, the team describes ...

Quantum Physics Mar 27, 2020

Quantum copycat: Researchers find a new way in which bosons behave like fermions

Bosons and fermions, the two classes into which all particles—from the sub-atomic to atoms themselves—can be sorted, behave very differently under most circumstances. While identical bosons like to congregate, identical fermions ...

Quantum Physics Mar 13, 2020

Initialization of quantum simulators by sympathetic cooling

Simulating computationally complex many-body problems on a quantum simulator has great potential to deliver insights into physical, chemical and biological systems. Physicists had previously implemented Hamiltonian dynamics ...

Superconductivity Feb 21, 2020

Scientists predict state of matter that can conduct both electricity and energy perfectly

Three scientists from the University of Chicago have run the numbers, and they believe there may be a way to make a material that could conduct both electricity and energy with 100% efficiency—never losing any to heat or ...

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