Super-resolving single-photon number-path-entangled state and its generation
Wei Feng, Kebei Jiang, M. L. Lollie, Muhammad Suhail Zubairy, Jonathan P. Dowling · Physical Review A · 2014
In this paper, we propose two protocols for generating super-resolving single-photon (SRSP) number-path-entangled states from general maximally number-path-entangled NOON states. It is our purpose to show that, contrary to popular belief, a field in a single-photon state can carry multifold phase information. We also show that both protocols generate the desired state with different probabilities depending on the type of detectors being used. Such SRSP number-path-entangled states preserve high resolving power but lack the requirement of a multiphoton absorbing resist, which may serve as a proof-of-principle prototype for quantum lithography in the future.