Entanglement generation between distant spins via quasilocal reservoir engineering

Abstract

The generation and preservation of entanglement is a central goal in quantum technology. Traditionally, dissipation in quantum systems is thought to be detrimental to entanglement, however dissipation can also be utilised as a means of generating entanglement between quantum spins that are not directly interacting. In particular entanglement can be generated between two qubits, or multi qubit systems via a collective coupling to a reservoir. In this work, we explore multiple spin domains pairwise coupled to different reservoirs and show that entanglement can be generated between spins which are not coupled to each other, or even coupled to the same reservoir.

13 pages, 10 figures

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• Conditional Entanglement Amplification via Non-Hermitian Superradiant Dynamics
• Synchronized Aharonov-Bohm Motifs via Engineered Dissipation
• Comparative analysis of robust entanglement generation in engineered XX spin chains