Direct implementation of a scalable non-local multi-qubit controlled phase gate via optical fibers and adiabatic passage

This paper presents a direct implementation scheme of thenon-local multi-qubit controlled phase gate by using optical fibersand adiabatic passage. The smaller operation number for implementingthe multi-qubit controlled phase gate and needlessness foraddressing individually save physical resource and lower thedifficulties of experiment. Meanwhile, the scheme is immune fromsome decoherence effects such as the atomic spontaneous emission andthe fibers loss. In principle, it is scalable.