Symmetry in Physics: From Conservation to Violation

Dear Colleagues,

Symmetry in physics stands as a foundational principle that underpins our understanding of the universe's fundamental laws. It manifests in various forms, from the elegant symmetries of classical mechanics through those encountered in quantum field theory. Symmetry principles dictate the conservation of fundamental quantities such as energy, momentum, and angular momentum, providing remarkable insights into the dynamics of physical systems.

However, the universe also reveals instances where symmetry is violated, challenging our conventional understanding. Lorentz violation, for instance, suggests deviations from the symmetry of spacetime under Lorentz transformations, potentially signaling new physics beyond the standard model. Similarly, in particle physics, the violation of charge–parity (CP) symmetry has profound implications for understanding the asymmetry between matter and antimatter in the cosmos. These violations prompt physicists to explore new theoretical frameworks and experimental frontiers, enriching our comprehension of the universe's intricacies and pushing the boundaries of knowledge in the quest for a more comprehensive theory of nature.

In the context of gravitation, symmetries play a crucial role in shaping our understanding of the gravitational interaction between celestial bodies. General relativity, with its elegant symmetries of spacetime curvature, provides a comprehensive framework for describing gravity as the curvature of spacetime induced by matter and energy. However, the correlation of gravity with quantum mechanics has led to the exploration of modified theories of gravity, where symmetries may be subtly altered.

Dr. Adailton A. Araújo Filho
Prof. Dr. Bo-Qiang Ma
Guest Editors

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• particle physics
• Lorentz and CP violation
• symmetry and broken symmetry
• gravitation