Dicke, in his seminal work in 1954, showed that two-level
atoms coupled to a common photon mode could exhibit superradiance. Dicke
also suggested entangling two non interacting two level atoms. We
propose extending this idea to many spins as a way to synthesize highly
entangled two level systems. Interestingly, We find that subradiant
states (dark states) belong to this category. Further they realize
resonating valence bond states, well known in condensed matter physics.
We explicitly bring out the RVB character, using Clebsch – Gordan (CG)
coefficients analysis [1]. We also present a protocol to create and
observe such RVB states experimentally. In the process we have also
found an interesting quantum phase transition [2] in the Dicke model.
[1] R. GANESH, L. THEERTHAGIRI AND G BASKARAN, 10.1103/PhysRevA.96.033829
[2] R. GANESH, L. THEERTHAGIRI AND G. BASKARAN, arXiv:1803.03267 [1] (TO APPEAR IN SCIPOST PHYSICS).