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Search results for fermionic model

Condensed Matter Sep 15, 2022

Âé¶¹ÒùÔºicists demo method for designing topological metals

U.S. and European physicists have demonstrated a new method for predicting whether metallic compounds are likely to host topological states that arise from strong electron interactions.

General Âé¶¹ÒùÔºics Sep 1, 2022

SU(N) matter is about 3 billion times colder than deep space

Japanese and U.S. physicists have used atoms about 3 billion times colder than interstellar space to open a portal to an unexplored realm of quantum magnetism.

Nanophysics Aug 9, 2022

Twisted-graphene model exhibits complex electronic behavior

A pair of researchers, one with Peking University, the other with Princeton University, has found that the parameters of twisted-graphene's excitation spectra correspond directly to attributes of the heavy fermion model. ...

Plasma Âé¶¹ÒùÔºics Jul 29, 2022

Using quantum technology to constrain new particles

Yet-to-be discovered axions and axion-like particles may be the key to explaining some of the deepest puzzles of our universe, such as dark matter and charge-parity violation in strong interactions. Several recent theories ...

General Âé¶¹ÒùÔºics Jul 4, 2022

The Higgs boson, ten years after its discovery

Ten years ago, on July 4 2012, the ATLAS and CMS collaborations at the Large Hadron Collider (LHC) announced the discovery of a new particle with features consistent with those of the Higgs boson predicted by the Standard ...

General Âé¶¹ÒùÔºics Jun 16, 2022

Quantum simulator shows how parts of electrons move at different speeds in 1D

A quantum simulator at Rice University is giving physicists a clear look at spin-charge separation, the quantum world's version of the magician's illusion of sawing a person in half.

General Âé¶¹ÒùÔºics Jun 14, 2022

A model that can predict the exact quasi-particle properties of heavy Fermi polarons

Âé¶¹ÒùÔºicists studying quantum many-body physics very rarely reach exact solutions or conclusions, particularly in more than one dimension. This is also true for the Fermi polaron problem, describing instances in which the many-body ...

Quantum Âé¶¹ÒùÔºics May 27, 2022

Observation of fractional exclusion statistics in quantum critical matter

A quantum system consisting of a large number of microscopic particles obeys statistical laws at the macroscopic level. In nature, there are two kinds of microscopic quantum particles. One is the boson satisfying the Bose-Einstein ...

Superconductivity May 19, 2022

Thermalization and information scrambling in a superconducting quantum processor

In recent years, physicists have carried out extensive studies focusing on quantum technology and quantum many-body systems. Two out-of-equilibrium dynamical processes that have attracted particular attention in this field ...

Condensed Matter Mar 29, 2022

Exact simulations of environmental influences on quantum systems

Today, quantum systems are becoming increasingly important for technological innovations in information processing, cryptography, photonics, spintronics, and high-performance computing. They are in constant interaction with ...

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