01270nas a2200193 4500008004100000245005700041210005700098260001500155300001100170490000700181520071900188100002700907700002000934700002100954700001700975700002200992700002501014856003701039 2015 eng d00aFractional Quantum Hall States of Rydberg Polaritons0 aFractional Quantum Hall States of Rydberg Polaritons c2015/03/31 a0338380 v913 a We propose a scheme for realizing fractional quantum Hall states of light. In
our scheme, photons of two polarizations are coupled to different atomic
Rydberg states to form two flavors of Rydberg polaritons that behave as an
effective spin. An array of optical cavity modes overlapping with the atomic
cloud enables the realization of an effective spin-1/2 lattice. We show that
the dipolar interaction between such polaritons, inherited from the Rydberg
states, can be exploited to create a flat, topological band for a single
spin-flip excitation. At half filling, this gives rise to a photonic (or
polaritonic) fractional Chern insulator -- a lattice-based, fractional quantum
Hall state of light.
1 aMaghrebi, Mohammad, F.1 aYao, Norman, Y.1 aHafezi, Mohammad1 aPohl, Thomas1 aFirstenberg, Ofer1 aGorshkov, Alexey, V. uhttp://arxiv.org/abs/1411.6624v1