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.
Researchers at the Indian Institute of Science (IISc) have demonstrated a new way of switching a material between two fundamentally different magnetic states using an electric current. The discovery could pave the way for ...
Condensed Matter
Jul 30, 2026
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One of Europe's highest distinctions in condensed matter physics has been awarded for a discovery that is reshaping our understanding of magnetism: The 2026 Europhysics Prize of the European Physical Society (EPS) Condensed ...
Condensed Matter
Jul 24, 2026
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In most everyday materials, such as copper, silver and silicon, the behavior of electrons is relatively predictable. In quantum materials, however, electrons can interact in complex ways, giving rise to collective electronic ...
Condensed Matter
Jul 23, 2026
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Graphene has long been regarded as one of the most promising materials for future electronics, but its relatively weak electron interactions have limited its potential for applications such as high-temperature superconductivity. ...
Condensed Matter
Jul 16, 2026
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Researchers at The University of Manchester have developed a new computational approach to help identify two-dimensional materials that may host unusual quantum behavior. The work, published in Science Advances, focuses on ...
Condensed Matter
Jul 9, 2026
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Underpinning much of modern technology, from smartphones to scanning tunneling microscopes to particle colliders, is Fermi's Golden Rule. Named for 20th-century Italian American physicist Enrico Fermi (but actually discovered ...
Quantum Physics
Jul 9, 2026
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Electrons, negatively charged particles, sometimes coordinate their movements in ways that produce certain collective excitations referred to as quasiparticles. One case in which this occurs is the quantum Hall effect, a ...
Quantum materials, materials exhibiting physical behavior governed by the laws of quantum mechanics, have proved promising for the development of numerous advanced technologies, including quantum technologies, memory devices ...
Plutonium is one of the most complex elements in the periodic table. First synthesized and isolated in 1940 by scientists at the University of California, Berkeley, plutonium has been studied closely for more than eight decades. ...
General Physics
Jun 29, 2026
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Strongly interacting quantum particles are key to some of the most fascinating phenomena in modern physics—from magnetism and superconductivity to topological states. Yet the complexity of such systems makes many of their ...
Superconductivity
Jun 25, 2026
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