kappa-Minkowski spacetime as the result of Jordanian twist deformation

Understand

Two one-parameter families of twists providing kappa-Minkowski * -product deformed spacetime are considered: Abelian and Jordanian.

• We compare the derivation of quantum Minkowski space from two perspectives.
• The first one is the Hopf module algebra point of view, which is strictly related with Drinfeld's twisting tensor technique.
• The other one relies on an appropriate extension of "deformed realizations" of nondeformed Lorentz algebra by the quantum Minkowski algebra.