Reversing the weak measurement of an arbitrary field with finite photon number
Qingqing Sun, M. Al-Amri, Muhammad Suhail Zubairy · Physical Review A · 2009
For an arbitrary field with finite photon number inside a leaky cavity, we show that the null-result measurement can be conditionally reversed, using either multiple atoms or a multilevel atom. Even with photons detected, a certain class of fields can still be probabilistically recovered. The state protection probability in such a system can be significantly high.