Figure 1 (IMAGE) Forschungsverbund Berlin Caption (a) Scheme of a four-waveguide array excited by a coherent state \&alpha;? (red arrow indicates the excited waveguide). (b) Synthetic graphs emerging from the coherent state excitation of the system in (a). Credit MBI Usage Restrictions The image may only be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.