Based on a comparative field study of two software development projects, we use ethnographic methods of observation and interview to examine the question of how interdependent individuals develop and maintain mutual focus of attention on a shared task, which we define as the group engagement process. Drawing on Randall Collins’ interaction ritual theory, we identify how mutual focus of attentio...

The optical Stark effect is a tell-tale signature of coherent light--matter interaction in excitonic systems, wherein an irradiating light beam tunes exciton transition frequencies. Here we show that, when excitons are placed nanophotonic cavity, the can become highly nonlinear, exhibiting multivalued and hysteretic shifts that depend on history light. This multistable (MSE) arises from feedbac...

We study the correlation of the ground state of an N-particle Moshinsky model by computing the Shannon entropy in both position and momentum spaces. We have derived the Shannon entropy and mutual information with analytical forms of such an N-particle Moshinsky model, and this helps us test the entropic uncertainty principle. The Shannon entropy in position space decreases as interaction streng...