  This paper explores the sensitivity of the human visual system to quantum
entangled light. We examine the possibility of human subjects perceiving
multipartite entangled state through psychophysical experiments. Our focus
begins with a bipartite entangled state to make a comparative study with the
literature by taking into account additive noise for false positive on
bipartite entanglement perception by humans. After that, we limit our similar
investigation to a tripartite entangled state for simplicity in higher
dimensions. To model the photodetection by humans, we employ the probability of
seeing determined for coherently amplified photons in Fock number states,
including an additive noise. Our results indicate that detecting bipartite and
tripartite entanglement with the human eye is possible for a certain range of
additive noise levels and visual thresholds. Finally, we discuss several
alternative amplification methods.
