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Strongly subradiant states in planar atomic arrays.
Ilya A Volkov1, Nikita A Ustimenko1, Danil F Kornovan1
1Department of Physics, ITMO University, Saint-Petersburg, Russia.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
Quantum information processing relies on long-lived atomic states. This study reveals that square atomic arrays significantly extend quantum state lifetimes by minimizing radiative losses, crucial for quantum computing advancements.
Area of Science:
- Quantum optics
- Atomic physics
- Quantum information science
Background:
- Optically trapped atoms are key for quantum information storage and manipulation.
- Protecting quantum states from decoherence, like spontaneous emission, is vital for quantum computing.
Purpose of the Study:
- To theoretically investigate collective dipolar oscillations in finite planar atomic arrays.
- To identify mechanisms responsible for long-lived, subradiant collective states in these arrays.
Main Methods:
- Theoretical analysis of collective dipolar oscillations in finite planar atomic arrays.
- Examination of collective states associated with array symmetry and quasi-flat band dispersion.
Main Results:
- External coupling between collective states enhances radiative lifetimes.
- Square atomic arrays exhibit collective eigenstates with minimal radiative losses.
- Radiative losses scale favorably with the total number of atoms (N_tot).
Conclusions:
- Square atomic arrays offer a promising platform for robust quantum information processing.
- Understanding collective state dynamics is essential for developing long-lived quantum memories.
- This research contributes to advancing quantum technologies through optimized atomic arrangements.
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