Three‐Body Topology Entanglement Generation via a Six‐Wave Mixing: Competing and Coexisting of Linear and Nonlinear Optics Responses in Triphoton Temporal Correlation. Issue 5 (4th March 2020) - Li, Kangkang
Abstract: Compared with biphotons, the three‐body photons have a more plentiful energy construction. Further, excellent properties such as entangled multiqubit states, high security, flexibility, and information capacity are observed as the increased number of photons is manipulated, in turn increasing the need for a multiple‐body quantum information process. Here, a novel method is proposed to generate natural narrowband three‐body photons of W state, entangled in time (or energy) via a single step of six‐wave mixing process (SWMP). Emphasizing on the linear and nonlinear susceptibilities of the SWMP, the properties of temporal correlation of the generated triphoton in the photon coincidence counting measurements are studied. Based on the photon–atom interfaces, these susceptibilities compete or coexist with each other. Meanwhile, in a dressed‐state picture, the nonlinear susceptibility decides the temporal correlation of the triphoton wave packet as damped multiperiodic Rabi oscillation, suggesting the property of the high‐dimensional time−energy entangled triphoton state. Moreover, combining the topology energy level constructions with the optical responses is a significant method for investigating the peculiarity in the temporal correlation of the generated three‐body photons. Abstract : A novel method is proposed to generate natural narrowband three‐body photons of W state with high‐dimensional entanglement in time (or energy) via a single step of six‐wave mixing process in the atomic system. The focus herein is on the topology energy level constructions and the quantum properties of temporal correlation of the generated triphoton in the photon coincidence counting rate.