Physicists have introduced the concept of magnetic quivers to analyze quantum field theories (QFTs), revealing new ways to visualize interactions and properties within these systems. Credit: SciTechDaily.com
A simple concept of decay and fission of magnetic quivers helps to clarify complex quantum physics and mathematical structures.
Researchers employed magnetic quivers to delve into the fundamentals of quantum physics, specifically through the lens of supersymmetric quantum field theories. They have provided a novel interpretation of the Higgs mechanism, illustrating how particles gain mass and the potential decay and fission within QFTs.
An international research team led by Marcus Sperling, a START award project leader at the Faculty of Physics, University of Vienna, has sparked interest in the scientific community with pioneering results in quantum physics: In their current study, the researchers reinterpret the Higgs mechanism, which gives elementary particles mass and triggers phase transitions, using the concept of magnetic quivers. The work has now been published in the prestigious journal Physical Review Letters.
The foundation of Marcus Sperlings research, which lies at the intersection of physics and mathematics, is Quantum Field Theory (QFT) a physical-mathematical concept within quantum physics focused on describing particles and their interactions at the subatomic level. Since 2018, he has developed the so-called magnetic quivers along with colleagues. This graphical tool summarizes all the information needed to define a QFT, thus displaying complex interactions between particle fields or other physical quantities clearly and intuitively.
The decay and fission of magnetic quivers provides insights into the physical and mathematical foundations of quantum field theories. QFTs are the framework for the description of countless physical phenomena: from subatomic particles to the universe. Credit: Pedro del Real
A quiver consists of directed arrows and nodes. The arrows represent the quantum fields (matter fields), while the nodes represent the interactions e.g., strong, weak, or electromagnetic between the fields. The direction of the arrows indicates how the fields are charged under the interactions, e.g., what electric charge the particles carry.
Marcus Sperling explains, The term magnetic is also used metaphorically here to point to the unexpected quantum properties that are made visible by these representations. Similar to the spin of an electron, which can be detected through a magnetic field, magnetic quivers reveal certain properties or structures in the QFTs that may not be obvious at first glance.
Thus, they offer a practical way to visualize and analyze complex quantum phenomena, facilitating new insights into the underlying mechanisms of the quantum world.
For the current study, the stable ground states (vacua) the lowest energy configuration in which no particles or excitations are present in a variety of supersymmetric QFTs were explored. These QFTs, with their simplified space-time symmetry, serve as a laboratory environment, as they resemble real physical systems of subatomic particles but have certain mathematical properties that facilitate calculations.
FWF START award winner Sperling said, Our research deals with the fundamentals of our understanding of physics. Only after we have understood the QFTs in our laboratory environment can we apply these insights to more realistic QFT models. The concept of magnetic quivers one of the main research topics of Sperlings START project at the University of Vienna was used as a tool to provide a precise geometric description of the new quantum vacua.
With calculations based on linear algebra, the researchers Antoine Bourget (University Paris Saclay), Marcus Sperling, and Zhenghao Zhong (Oxford University) demonstrated that analogous to radioactivity in atomic nuclei a magnetic quiver can decay into a more stable state or fission into two separate quivers. These transformations offer a new understanding of the Higgs mechanism in QFTs, which either decay into simpler QFTs or fission into separate, independent QFTs.
Physicist Sperling stated, The Higgs mechanism explains how elementary particles acquire their mass by interacting with the Higgs field, which permeates the entire universe. Particles interact with this field as they move through space similar to a swimmer moving through water.
A particle that has no mass usually moves at the speed of light. However, when it interacts with the Higgs field, it sticks to this field and becomes sluggish, leading to the manifestation of its mass. The Higgs mechanism is thus a crucial concept for understanding the fundamental building blocks and forces of the universe.
Mathematically, the decay and fission algorithm is based on the principles of linear algebra and a clear definition of stability. It operates autonomously and requires no external inputs.
The results achieved through physics-inspired methods are not only relevant in physics but also in mathematical research. They offer a fundamental and universally valid description of the complex, intertwined structures of the quantum vacua, representing a significant advance in mathematics.
Reference: Decay and Fission of Magnetic Quivers by Antoine Bourget, Marcus Sperling and Zhenghao Zhong, 31 May 2024, Physical Review Letters. DOI: 10.1103/PhysRevLett.132.221603
Link:
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