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Directional subradiance from helical-phase-imprinted multiphoton states.
1Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan. sappyjen@gmail.com.
Scientific Reports
|May 10, 2018
Summary
We explore how multiphoton states with orbital angular momentum (OAM) scatter light. Subradiant states exhibit directional or transverse scattering, controllable by atomic arrangement for quantum applications.
Area of Science:
- Quantum optics
- Atomic physics
- Many-body physics
Background:
- Super- and subradiant states arise from cooperative effects in atomic ensembles.
- Orbital angular momentum (OAM) enables structured light-matter interactions.
- Multiphoton excitations offer pathways to complex quantum states.
Purpose of the Study:
- To theoretically investigate the far-field scattering properties of multiphoton super- and subradiant states.
- To explore the influence of atomic spatial arrangement on scattering patterns.
- To assess the potential for quantum storage and information manipulation.
Main Methods:
- Theoretical modeling of multiphoton excitation.
- Analysis of far-field scattering patterns resulting from quantum interference.
- Simulation of various atomic configurations (stacked and concentric rings).
Main Results:
- Subradiant states show directional or transverse scattering dependent on atom number and arrangement.
- Multiphoton interference dictates the far-field emission characteristics.
- Stacked rings enhance directional scattering, while concentric rings smooth emission.
Conclusions:
- Atomic spatial design allows tailoring of cooperative quantum states and their emission.
- The findings provide insights into preparing many-body subradiant states.
- This work has potential applications in quantum storage of OAM multiphotons and light collection.
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