Transport and Quantum Walk of Nonclassical Light in Coupled Waveguides

摘要

We study the transport and quantum walk of nonclassical light in an array ofcoupled waveguides which have novel properties like very low decoherence andthus making them ideal for storage of quantum information. We show howsqueezing gets turned over from one waveguide to another. We further show howinput nonclassical light can generate entanglement among different waveguides.Our results involve both first quantization due to array structure and secondquantization due to the quantum nature of fields and can also be used todiscuss the Talbot effect in the quantum regime.