Abstract
It is well known that quantum illumination with a two-mode squeezed vacuum state as an initial entangled bipartite state achieves 6 dB quantum advantage in the error probability compared to classical coherent-state illumination. Is entanglement the only resource responsible for the quantum advantage? We explore this issue by applying the various squeezing operators to the two-mode squeezed vacuum state. Even though the operations do not decrease the bipartite entanglement, it is shown that the quantum advantage drastically decreases with increasing the squeezing parameters. Based on the fact, we conclude that entanglement is not unique resource responsible for the quantum advantage.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
