Deterministic generation of large scale atomic W states

Abstract

We present a deterministic scheme for generating large-scale atomic W states in cavity QED system via a simple expansion mechanism, which is realized only by a detuned interaction between two identical atoms and a vacuum cavity mode. With the presented scheme, a W-type Bell pair can be created and an n-atom W state can be expanded to a 2n-atom W state with a unit probability of success in principle. No multi-atom gates, quantum memories or quantum non-demolition measurements are required, greatly simplifying the experimental realization of the scheme. The feasibility analysis shows that our expansion scheme can be implemented with state-of-the-art technologies. Our scheme enables advances not only in quantum information and communication but also in quantum thermodynamics, where atomic W states plays a crucial role.

arXiv comment5 pages, 1 color figure

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Cited by in corpus (10)

• Deterministic Local Expansion of W States
• $N$ identical particles and one particle to entangle them all
• Deterministic preparation of W states via spin-photon interactions
• Evolution of tripartite entangled states in a decohering environment and their experimental protection using dynamical decoupling
• Scalable generation and detection of on-demand W states in nanophotonic circuits
• Freezing Optical Rogue Waves by Zeno Dynamics
• Nonlocal Activation of Bound Entanglement via Local Quantum Zeno Dynamics
• Efficient linear optical generation of a multipartite W state
• Classification and measurement of multipartite entanglement by reconstruction of correlation tensors on an NMR quantum processor
• Fusion of atomic W-like states in cavity QED systems