Theoretical Seminar. Alexander Poddubny

Alexander Poddubny 

‘Interaction-induced localization for photon pairs in a qubit array coupled to a waveguide’

Abstract:

We predict that finite periodic arrays of two-level qubits in a waveguide feature interaction-induced localization. While all single-particle states are delocalized standing waves, there exist two-particle excitations, where one of the two indistinguishable particles is trapped due to the interaction with the second one. This can be viewed as a quantum interaction-induced optical lattice.