Generation, manipulation, and detection of two-qubit entanglement in waveguide QED

We study the possibility of using guided photons to generate, control, and measure the entanglement of two qubits that is mediated by a one-dimensional waveguide. We show how entanglement can be generated both with single-photon and with two-photon wave packets. The introduction of a second photon allows for a manipulation of theentanglement between thequbits,andphenomena suchas suddendeathandrevival ofentanglement appear. Finally, we propose a procedure for entanglement detection via the scattering output of a single photon over a qubit state.