Phys.org June 26, 2024
Single electrons trapped on solid-neon surfaces, which have long coherence times, are promising platform for charge qubits. The actual quantum states of the trapped electrons have not been understood. A team of researchers in the USA (National High Magnetic Field Laboratory (Florida), Florida State University, University of Florida, FAMU-FSU College of Engineering) examined the electron’s interactions with neon surface topography and by evaluating the surface charges induced by the electron, they demonstrated its strong perpendicular binding to the neon surface. They revealed that surface bumps could bind an electron, forming unique quantum ring states that aligned with experimental observations. They showed that the electron’s excitation energy could be tuned to facilitate qubit operation. According to the researchers their study helps understand of electron-on-solid-neon qubit properties and provides insights on minimizing charge noise and scaling the system to propel forward quantum computing architectures… read more. TECHNICAL ARTICLEÂ
A diagram of an electron-on-solid-neon quantum bit. Credit: Phys. Rev. Lett. 132, 250603, 18 June 2024Â