Leveraging dissipation for entangling superconducting qubits directly coupled to a 1D waveguide*

Distributing entanglement between distant qubits is a critical functionality for quantum networking. Conventional approaches achieve deterministic remote entanglement in open quantum channels via direct exchange of the quantum states with propagating photons. These approaches often require temporal matching of the photonic states in precisely timed operations and are limited by photon loss in the communication channel. Alternatively, driven-dissipative stabilization protocols exploit dissipation into an engineered reservoir - as a resource - for creating steady-state entanglement. Implementing such schemes with remote qubits, however, is challenging due to the technical requirements in controlling the qubit-reservoir interactions in open communication channels. Here, we discuss the hardware requirements of a scheme for stabilizing remote entanglement between a pair of superconducting (transmon) qubits linked by a microwave waveguide on a chip, and present our results demonstrating progress towards a physical implementation. Successful demonstrations of this concept may lead to the development of new protocols for modular quantum computing.