J. Magpantay

*Some physics (science) articles are beyond my understanding. This is one of them and here is the abstract.*

J. Magpantay, Dual Kappa Poincare Algebra, International Journal of Modern Physics A, V 25 (2010) 1881-189.

**DOI: 10.1142/S0217751X1004807X**

We show a different modification of Poincaré algebra that also preserves Lorentz algebra. The change begins with how boosts affect space–time in a way similar to how they affect the momenta in kappa Poincaré algebra; hence the term “dual kappa Poincaré algebra.” Since by construction the new space–time commutes, it follows that the momenta cocommute. Proposing a space–time coalgebra that is similar to the momentum coproduct in the bicrossproduct basis of kappa Poincaré algebra, we derive the phase space algebra using the Heisenberg double construction. The phase space variables of the dual kappa Poincaré algebra are then related to SR phase space variables. From these relations, we complete the dual kappa Poincaré algebra by deriving the action of rotations and boosts on the momenta.

*Seriously, I need someone to explain this. *

Dr. Magpantay is with the National Institute of Physics, and the Technology Management Center of UP Diliman.

**UPDATE as of Aug. 7, 2010:**

** ***Somebody heard my call. Thank you, Dr. Jose Perico Esguerra!*

The paper is proposing that there is more than one way to formulate Doubly-Special Relativity. Doubly special relativity is a type of relativity that requires that there should be an observer independent maximum energy scale (Planck energy) on top of the usual SR requirements (i.e. Principle of Invariance + Observer Independence of the speed of light in vacuum).

Dr. Esguerra also sent me a link to wiki (http://en.wikipedia.org/wiki/Doubly-special_relativity) for context.

Probably, I should write an expanded article on this. :p

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