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Metasurface for programmable quantum algorithms with classical and quantum light.
Randy Stefan Tanuwijaya1, Hong Liang1, Jiawei Xi1
1Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P.R. China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
This study introduces a programmable quantum metasurface that can execute quantum algorithms like Grover
Area of Science:
- Quantum optics
- Nanophotonics
- Quantum information science
Background:
- Metasurfaces are emerging as powerful tools for quantum applications, including quantum tomography and entanglement generation.
- Their ability to store information using nanostructure geometry makes them promising for quantum information processing.
Purpose of the Study:
- To propose and experimentally demonstrate a programmable metasurface for executing quantum algorithms.
- To utilize both classical and quantum light with single photons for quantum information processing.
Main Methods:
- Encoding multiple quantum algorithms (Grover's search, quantum Fourier transform) onto a single metalens array metasurface.
- Using a spatial light modulator to selectively activate metalenses for specific quantum algorithms.
- Employing a single-photon camera to capture interference patterns and extract output quantum state information.
Main Results:
- Successful experimental demonstration of a programmable quantum metasurface.
- Capability to perform distinct quantum algorithms on the same metasurface.
- Extraction of quantum state information via interference patterns.
Conclusions:
- The programmable quantum metasurface offers a versatile platform for quantum information processing.
- This approach shows potential for cost-effective miniaturization of quantum computing components.
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