Jordanian Twist Quantization of D=4 Lorentz and Poincare Algebras and D=3 Contraction Limit

A. Borowiec, J. Lukierski, V. N. Tolstoy

We describe in detail two-parameter nonstandard quantum deformation of D=4 Lorentz algebra $\mathfrak{o}(3,1)$, linked with Jordanian deformation of $\mathfrak{sl}(2;\mathbb{C})$.…