Coupling superconducting artificial atoms to the continuum of modes in a waveguide opens
a door for probing a vast range of atom-light interactions in an open space configuration. In
this thesis, we experimentally implement a platform where two transmon-type
superconducting qubits are coupled to the one-dimensional fields confined in a rectangular
waveguide. Using this platform, we first show how field-mediated interactions between the
atoms can be used to generate sub-and super-radiant states, which, when combined with …