In condensed matter physics, analysis of symmetries is a fundamental theoretical technique used to classify phases of matter, constrain effective Hamiltonians, and predict emergent phenomena independent of microscopic details. By identifying spatial (lattice, point-group, translational), internal (spin, gauge), and spacetime (time-reversal) symmetries and how they are represented on fields or quasiparticles, one can determine allowed terms in Ginzburg–Landau functionals, low-energy effective field theories, and band structures. Symmetry considerations underlie methods such as group-theoretical classification of order parameters, symmetry-based selection rules, topological band theory, and the systematic construction of symmetry-protected and symmetry-enriched phases in crystalline and strongly correlated systems.
Altermagnets are a newly recognized class of antiferromagnets whose magnetic structure behaves very differently from what is found in conventional systems. In conventional antiferromagnets, the sublattices are linked by simple ...
Condensed Matter
Dec 26, 2025
0
172
Superconductors are materials that can conduct electricity with zero resistance, usually only at very low temperatures. Most superconductors behave according to well-established rules, but strontium ruthenate, Sr₂RuO₄, has ...
Condensed Matter
Dec 18, 2025
0
76
When a system undergoes a transformation, yet an underlying physical property remains unchanged, this property is referred to as "symmetry." Spontaneous symmetry breaking (SSB) occurs when a system breaks out of this symmetry ...
Over the past decade, experts in the field of nanotechnology and materials science have been trying to devise architectures composed of small structures that spontaneously arrange themselves following specific patterns. Some ...
A team of researchers has discovered how a little-known type of symmetry in quantum materials, called nonsymmorphic symmetry, governs the way these materials interact with intense laser light.
Condensed Matter
Aug 21, 2025
0
137
In a review just published in Nature Materials, researchers take aim at the oldest principle in electronics: Ohm's law.
Condensed Matter
Jul 2, 2025
0
268
Time crystals represent a new phase of matter proposed by Frank Wilczek, the Nobel laureate of Physics in 2004; they can break original time-translation symmetry and create new time oscillations spontaneously.
Optics & Photonics
May 13, 2025
0
61
The materials that make up all the structures and physical systems around us, including our own bodies, are not perfect—they contain flaws in the form of tiny cracks. When one of these cracks suddenly and rapidly spreads, ...
General Physics
May 12, 2025
0
46
In the context of quantum physics, the term "duality" refers to transformations that link apparently distinct physical theories, often unveiling hidden symmetries. Some recent studies have been aimed at understanding and ...
In a new Nature Physics study, researchers have provided evidence of universal conformal invariance in living biological cells. They show that a universal feature in the collective behavior emerges in groups of living cells.
