transported over several hundreds of $\mu$m by the moving (and tunable) strain modulation induced by a surface acoustic wave (SAW) propagating on the DQW structure.[@Ref21]

Previous reports have addressed the coupling of a reduced number of, in most cases, closely spaced IX systems. An interesting question is whether an approach can be envisaged to interconnect multiple remote IX sites, providing, therefore, a multi-functional and scalable technology for exciton-based optoelectronic circuits. In this paper, we introduce a novel concept for the scalable interconnection of remote IX systems based on a network of acoustic beams and electrostatic gates. The feasibility of the concept is demonstrated by an exciton acoustic multiplexer (EXAM) - an integrated multiport device for the storage and controlled transfer of IXs between any two nodes of a two-dimensional (2D) array of IXs systems. The EXAM consists of a network of I/O ports interconnected by an array of transport channels driven by SAWs. Each I/O port can be isolated from the array of transport channels by an exciton acoustic transistor (EXAT). As a results, these ports can be used for storage of IXs as well as for their interconversion to photons. Scalability, presently a main limitation for quantum computational systems, 