Nowadays quantum models became very applicable in artificial intelligence development. Mathematical basis of quantum mechanics allows its well use for tasks of cognitive informatics: conceptual analysis, learning and information retrieval. For farther development of concepts formation, learning, and information retrieval technologies utilization of quantum methods of contextuality and entanglement, interference, quantum range and semantic similarity are very important: they introduced the new step in information science and technology. In presented paper some methods and tools of quantum information technologies are observed. On the basis of quantum interactions concepts formation and their properties within information retrieval tasks were investigated.