Adiabatic passage for three-dimensional entanglement generation through quantum Zeno dynamics

Area of Science:

• Quantum Information Science
• Atomic Physics
• Quantum Entanglement

Background:

• Generating multi-atom entanglement is crucial for quantum computing and communication.
• Existing protocols often suffer from long operation times and decoherence.

Purpose of the Study:

• To propose a novel adiabatic passage approach for generating two-atom three-dimensional entanglement.
• To enhance the robustness and efficiency of entanglement generation protocols.

Main Methods:

• Utilizing quantum Zeno dynamics in a time-dependent interacting field.
• Employing spatially separated cavities connected by a fiber to avoid individual atom addressing.
• Leveraging resonant interactions to shorten entanglement generation time.

Main Results:

• The proposed scheme efficiently generates two-atom three-dimensional entanglement.
• It demonstrates robustness against cavity decay and atomic spontaneous emission.
• Losses due to photon excitation and atomic transitions are suppressed compared to dispersive protocols.

Conclusions:

• The adiabatic passage approach with quantum Zeno dynamics offers an efficient and robust method for generating multi-atom entanglement.
• The scheme is scalable for generating N-atom and high-dimensional entanglement.
• This work provides a promising avenue for advancing quantum technologies.