Dharam Ahluwalia is a theoretical physicist known internationally for his research on neutrino oscillations, interface of the gravitational and quantum realms, and new constructs in quantum field theory. In the early 1990s he introduced what later came to be known as Elko, and in 2005, together with Daniel Grumiller, reported on an unexpected theoretical discovery of mass dimension one fermions. This work has opened the field of Elko cosmology and has attracted the attention of physicists working on the localisation problem in five dimensional branes. In 1996, he was awarded the First Prize of the Gravity Research Foundation, jointly with Christoph Burgard.
Preface
Acknowledgements
1. Introduction
2. A trinity of duplexities
3. From elements of Lie symmetries to Lorentz algebra
4. Representations of Lorentz Algebra
5. Discrete symmetries: Part 1 (Parity)
6. Discrete symmetries: Part 2 (Charge conjugation)
7. Eigenspinors of charge conjugation operator, Elko
8. Construction of Elko
9. A hint for mass dimension one fermions
10. CPT for Elko
11. Elko in Shirokov-Trautman, Wigner, and Lounesto classifications
12. Rotation induced effects on Elko
13. Elko-Dirac interplay, a temptation and a departure
14. An ab initio journey into duals
15. Mass dimension one fermions
16. Mass dimension one fermions as a first principle dark matter
17. Continuing the story
Appendix: a brief survey of other Elko literature
References
Index.
