Physics – Quantum Physics
Scientific paper
2011-09-05
Phys. Scr. T147, 014017 (2012)
Physics
Quantum Physics
7 pages, 1 figure. Proceedings of 18th Central European Workshop on Quantum Optics (CEWQO 2011), Madrid, Spain
Scientific paper
We analyze the Majorana equation in the limit where the particle is at rest. We show that several counterintuitive features, absent in the rest limit of the Dirac equation, do appear. Among them, Dirac-like positive energy solutions that turn into negative energy ones by free evolution, or nonstandard oscillations and interference between real and imaginary spinor components for complex solutions. We also study the ultrarelativistic limit, showing that the Majorana and Dirac equations mutually converge. Furthermore, we propose a physical implementation in trapped ions.
Casanova Jordi
Egusquiza Inigo L.
Lamata Lucas
Solano Enrique
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