NIST researchers have developed a new device that combines an ion trap and single-photon detector, which could revolutionize quantum computing. The device, which looks like an art deco sculpture, can hold charged atoms (ions) in place and detect individual particles of light (photons) emitted by the ions.
The device’s significance lies in its ability to determine whether an ion glows or remains dark, which is crucial for quantum computing. Quantum computers use the two quantum states of ions (glowing or not glowing) to perform calculations, similar to how classical computers use 0s and 1s.
Previous solutions required bulky equipment and faced challenges in maintaining a clear view of all ions in the system. The new NIST device overcomes these issues by incorporating an aluminum barrier around the detector, allowing the ion trap to use large voltages while keeping the detector’s delicate environment intact.
This innovation could lead to more powerful quantum computing systems that can process information more efficiently by tracking many ions simultaneously. The research paper detailing the device’s design and capabilities has been published in Applied Physics Letters.
Keywords: trapped ions, single-photon detector, quantum computing
