Researchers from the US Department of Energy's Argonne National Laboratory and State University
Scientists used a superconducting resonatorthe size of a microchip to manipulate captured electrons. Thus, information can be written to and read from a qubit. This technology will be needed when using such a qubit in quantum computers.
Researchers note that one of the mainThe qualities of qubits is their ability to remain in a state of 0 or 1 simultaneously for a long time. This time is called "coherence time". It is always limited by the interactions of the qubit with the environment.
Neon is an inert gas and does not react withother elements. When frozen, the surface of this gas is an ultrapure homogeneous surface. Therefore, the coherence time for new qubits increases significantly.
“Because of this inertness, solid neon could serve as the purest solid in a vacuum to house and protect any qubits from destruction,” says Dafei Jin, co-author of the study.
In previous studies, as a medium forelectrons were held in liquid helium, the researchers note. This material, according to the developers, was easy to clean from defects, but vibrations of a liquid-free surface disrupted the state of the electron and the operation of the qubit.
Solid neon, as physicists note, containsthe minimum number of defects and does not vibrate like liquid helium. Experiments carried out by scientists have shown that solid neon provides a safe environment for the electron, with very little electrical noise to disturb it. In addition, the coherence time in the quantum state of the new development is at least as good as modern qubits, the researchers note.
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