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An atom interferometer inside a hollow-core photonic crystal fiber
Mingjie Xin1, Wui Seng Leong1, Zilong Chen1
1Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
Science Advances
|January 27, 2018
Summary
Researchers developed a novel atom interferometer using hollow-core photonic crystal fiber for free-falling rubidium atoms. This innovation overcomes light diffraction limits, enabling scalable quantum sensing and precision measurements.
Area of Science:
- Quantum Science and Technology
- Atomic Physics
- Optics
Background:
- Coherent interactions between electromagnetic and matter waves are fundamental to quantum technologies.
- The diffraction of light limits the scalability of atom-light quantum systems.
- Atom interferometers are sensitive inertial sensors.
Purpose of the Study:
- To realize an inertia-sensitive atom interferometer that overcomes the diffraction limit of light.
- To integrate photonic and quantum systems for advanced atom interferometry.
- To demonstrate a scalable and efficient platform for precision measurement and quantum sensing.
Main Methods:
- Utilized optical fields within a hollow-core photonic crystal fiber.
- Spatially split, reflected, and recombined a coherent superposition state of free-falling 85Rb atoms.
- Operated the atom interferometer over a diffraction-free distance.
Main Results:
- Successfully realized an inertia-sensitive atom interferometer.
- Demonstrated operation over a diffraction-free distance.
- Observed agreement between contrasts and phase shifts at different distances within one standard error.
Conclusions:
- The integration of phase-coherent photonic and quantum systems offers a promising approach for advanced atom interferometry.
- This method enables miniature apparatus design and high laser power efficiency.
- Significant potential for advancing precision measurement and quantum sensing capabilities.
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