Quantum dense coding (DC), first introduced by Bennett and Weisner for qubit systems, was generalized to the continuous variable (CV) paradigm by Braunstein and van Look for a single sender and a single receiver. In this talk, I will discuss the continuous variable dense coding (CV-DC) scheme for multiple senders sharing a multimode entangled state with a single receiver. I will present our framework for generating a multimode-dense coding network using quantum optical fields and demonstrate the quantum advantage of the protocol using paradigmatic classes of three- and four-mode states. The protocol is scalable to arbitrary numbers of senders. The encoding operations comprise local displacements while the decoding involves homodyne measurements of the modes. Our protocol involves simple optical elements such as beam splitters and mirrors, thereby exhibiting its potentiality for experimental realization.
