Środowiskowe Seminarium z Informacji i Technologii Kwantowych

In my presentation I will briefly discuss results of my ongoing project with Andrzej Dragan. We suggest how to encode information in the initial states of quantum fields so that the information is robust against the influence of the unknown Bogoliubov transformations. We discuss the role of symmetries and certain type of correlations between quantum fields in the scenarios where Bogoliubov transformations modify fields in analogous way. This model and corresponding results are closely related to the topic of decoherence-free subspaces