  Here we are investigating the enhancement in phase sensitivity and resolution
in Mach-Zehnder interferometer (MZI) based quantum LiDAR. We are using
multi-photonic state (MPS), superposition of four coherent states [1], as the
input state and binary outcome parity photon counting measurement and binary
outcome zero-nonzero photon counting measurement as the measurement schemes. We
thoroughly investigate the results in lossless as well as in lossy cases. We
found enhancement in resolution and phase sensitivity in comparison to the
coherent state and even coherent superposition state (ECSS) based quantum
LiDAR. Our analysis shows that MPS may be an alternative nonclassical resource
in the field of quantum imaging and quantum sensing technologies, like in
quantum LiDAR.
