Non-Markovian effects in waveguide-mediated entanglement

Understand

We study the generation and evolution of entanglement between two qubits coupled through one-dimensional waveguide modes.

• By using a complete quantum electrodynamical formalism we go beyond the Markovian approximation.
• The diagonalization of the hamiltonian is carried out, and a set of quasi-localized eigenstates is found.
• We show that when the qubit-waveguide coupling is increased, the Markov approximation is not anymore valid, and the generation of entanglement is worsened.