  Establishing limits of entanglement in open quantum systems is a problem of
fundamental interest, with strong implications for applications in quantum
information science. Here, we study limits of entanglement stabilization
between remote qubits. We theoretically investigate the loss resilience of
driven-dissipative entanglement between remote qubits coupled to a chiral
waveguide. We find that by coupling a pair of storage qubits to the two driven
qubits, the steady state can be tailored such that the storage qubits show a
degree of entanglement that is higher than what can be achieved with only two
driven qubits coupled to the waveguide. By reducing the degree of entanglement
of the driven qubits, we show that the entanglement between the storage qubits
becomes more resilient to waveguide loss. Our analytical and numerical results
offer insights into how waveguide loss limits the degree of entanglement in
this driven-dissipative system, and offers important guidance for remote
entanglement stabilization in the laboratory, for example using superconducting
circuits.
