Ding-Frenkel isomorphism and Bethe vectors for Yangians

The Frenkel isomorphism establishes a connection between the RTT realization and the Drinfeld current realization of quantum algebras using quantum Gauss decomposition. Quantum integrable systems are naturally described in the language of the RTT realization as a commuatative subalgebra. In this talk, I want to show how the description of the eigenvectors of these systems can be presented in the framework of the Drinfeld current realization in a universal way.