Abstract
A new scheme to generate a multi-path cat state of light, in which N photons are propagating in N different paths as a photonic macro-molecule, is proposed. Starting with N indistinguishable single-photon sources and using linear optical circuits, the target state is extracted with high fidelity. If a state preserving quantum non-demolition measurement of photon number can be incorporated into the generation scheme, the fidelity is further improved.
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