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Generation of Quasiparticles by Particle-antiparticle Mixing and Limitations of Quantum Mechanics by Lee, Chang-Hun is a scholarly article available to read on EtoBox.

What is Generation of Quasiparticles by Particle-antiparticle Mixing and Limitations of Quantum Mechanics about?

The mixing of a neutral unstable particle and its antiparticle has been usually discussed in the framework of quantum mechanics in the literature. In this paper, the particle-antiparticle mixing is discussed fully in the quantum field theory, and it is shown that quantum mechanics is not the proper non-relativistic limit of the quantum field theory in the presence of such mixing. Moreover, it is also shown that a discrepancy indeed exists between the results from quantum mechanics and the quantum field theory, which can sometimes make big differences in theoretical predictions of observables such as decay widths. This result has an implication for the mixing of neutral mesons and the CP violation in their decays.

Author

Lee, Chang-Hun

Published

2020

Language

EN