Strongly correlated systems are physical systems in which electron–electron (or more generally particle–particle) interactions are comparable to or larger than their kinetic energy, invalidating independent-particle or mean-field descriptions. In such systems, many-body effects dominate, leading to emergent phenomena such as Mott insulating behavior, unconventional superconductivity, non-Fermi-liquid states, heavy-fermion behavior, and complex magnetic orders. Their theoretical treatment typically requires beyond-perturbative methods, including dynamical mean-field theory, quantum Monte Carlo, tensor-network approaches, and exact diagonalization. Strong correlations are central in materials such as transition-metal oxides, cuprates, organics, and ultra-cold atomic gases engineered to simulate lattice models like the Hubbard or t–J models.
A new study published in Nature Communications April 7 could reshape the future of magnetic and electronic technology. Scientists at Rice University have discovered how a disappearing electronic pattern in a quantum material ...
Condensed Matter
Apr 9, 2025
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105
Scientists have long sought to unravel the mysteries of strange metals—materials that defy conventional rules of electricity and magnetism. Now, a team of physicists at Rice University has made a breakthrough in this area ...
General Physics
Mar 29, 2025
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260
For decades, researchers have explored how electrons behave in quantum materials. Under certain conditions, electrons interact strongly with each other instead of moving independently, leading to exotic quantum states. One ...
Superconductivity
Mar 26, 2025
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61
A research team discovered a quantum state in which electrons move in a completely new way under a twisted graphene structure. The unique electronic state is expected to contribute to the development of more efficient and ...
Quantum Physics
Jan 21, 2025
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135
A team of researchers has discovered a new way to control the magnetic behavior of quantum materials using applied voltages. Specifically, the material lanthanum strontium manganite (LSMO), which is magnetic and metallic ...
Condensed Matter
Jan 16, 2025
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141
At extremely high densities, quarks are expected to form pairs, as electrons do in a superconductor. This high-density quark behavior is called color superconductivity. The strength of pairing inside a color superconductor ...
General Physics
Jan 14, 2025
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71
A new study by Rice University physicist Qimiao Si unravels the enigmatic behaviors of quantum critical metals—materials that defy conventional physics at low temperatures. Published in Nature Physics Dec. 9, the research ...
Superconductivity
Dec 9, 2024
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61
Researchers at Università Cattolica, Brescia campus, have discovered that the transition from insulating to conductive behavior in certain materials is driven by topological defects in the structure.
Condensed Matter
Nov 15, 2024
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70
A new route to materials with complex disordered magnetic properties at the quantum level has been produced by scientists for the first time. The material, based on a framework of ruthenium, fulfills the requirements of the ...
Condensed Matter
Nov 15, 2024
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108
Quantum computers hold the promise to emulate complex materials, helping researchers better understand the physical properties that arise from interacting atoms and electrons. This may one day lead to the discovery or design ...
Condensed Matter
Oct 30, 2024
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