[A barricade made of barrels is seen inside the UN-controlled buffer zone in Nicosia]By Michele Kambas NICOSIA (Reuters) - Turkey's crackdown on government opponents and the imposition of a state of emergency following the abortive military coup last week has tempered hopes of a swift settlement on divided Cyprus. Nicosia is watching with increasing trepidation how the fallout could hit reunification talks between Greek and Turkish Cypriots. Turkey provides military and financial support to the breakaway Turkish Cypriot state in northern Cyprus.