# Will the non-colluding servers communicate in IT-PIR schemes ?

The current literature around Information Theoretic Private Information Retrieval (IT-PIR) schemes assume the existence of multiple copies of the database distributed across non-colluding servers. Much of the research seems to be around the servers not communicating with each other but only with the client.

Can the results be improved (or are there known results) ? when the the multiple servers communicate among themselves without breaking the security assumptions (say using multiparty computation) ?