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# single-photon2.png

## Appears In

                        - Chip Circuit for Light Could Be Applied to Quantum Computations

Illustration shows some of the steps in creating the new ultra-low-loss photonic circuit on a chip. A microprobe lifts a gallium arsenide device containing a quantum dot—artificial atoms that generate single photons—from one chip. Then the probe places the quantum-dot device atop a low-loss silicon-nitride waveguide built on another chip.

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