Steady-state entanglement generation for non-degenerate qubits

TL;DR

This paper introduces methods to generate and transfer steady-state entanglement between non-degenerate qubits using dissipative processes and adiabatic techniques, inspired by EIT and STIRAP, with potential for robust quantum state preparation.

Contribution

It presents novel schemes for dissipative and adiabatic transfer of steady-state entanglement in non-degenerate qubits, expanding quantum control techniques.

Findings

Successful steady-state entanglement generation demonstrated

Adiabatic transfer scheme achieves high-fidelity entangled states

Analogies with EIT and STIRAP elucidate the dynamics

Abstract

We propose a scheme to dissipatively produce steady-state entanglement in a two-qubit system, via an interaction with a bosonic mode. The system is driven into a stationary entangled state, while we compensate the mode dissipation by injecting energy via a coherent pump field. We also present a scheme which allows us to adiabatically transfer all the population to the desired entangled state. The dynamics leading to the entangled state in these schemes can be understood in analogy with electromagnetically induced transparency (EIT) and stimulated Raman adiabatic passage (STIRAP), respectively.