An illustration of the qubit platform made of a single electron on solid neon. Scientist froze neon gas into a solid at extremely low temperature levels, sprayed electrons from a light bulb onto the solid, and caught a single electron there to produce a qubit. Credit: Courtesy of Dafei Jin/Argonne National Laboratory
The digital device you are utilizing to see this article is no doubt utilizing the bit, which can either be 0 or 1, as its standard system of information. Nevertheless, scientists around the world are racing to develop a brand-new kind of computer system based upon the usage of quantum bits, or qubits, which can simultaneously be 0 and 1 and could one day fix complicated issues beyond any classical supercomputers.
A research group led by researchers at the U.S. Department of Energys (DOE) Argonne National Laboratory, in close partnership with FAMU-FSU College of Engineering Associate Professor of Mechanical Engineering Wei Guo, has announced the development of a brand-new qubit platform that reveals terrific pledge to be turned into future quantum computer systems. Their work is released in the journal Nature.
” Quantum computer systems could be an innovative tool for carrying out estimations that are virtually impossible for classical computers, however there is still work to do to make them reality,” said Guo, a paper co-author. “With this research, we think we have a development that goes a long method toward making qubits that help realize this technologys potential.”
The team created its qubit by freezing neon gas into a solid at really low temperature levels, spraying electrons from a light bulb onto the strong, and trapping a single electron there.
FAMU-FSU College of Engineering Associate Professor of Mechanical Engineering Wei Guo. Credit: Florida State University
While there are many options of qubit types, the group selected the most basic one– a single electron. Heating up an easy light filament such as you might discover in a childs toy can easily shoot out a limitless supply of electrons.
One essential quality for qubits is their capability to stay in a simultaneous 0 or 1 state for a long time, called its “coherence time.” That time is restricted, and the limitation is determined by the method qubits interact with their environment. Flaws in the qubit system can substantially reduce the coherence time.
For that factor, the team picked to trap an electron on an ultrapure strong neon surface area in a vacuum. Neon is among just 6 inert components, indicating it does not react with other aspects.
” Because of this inertness, strong neon can act as the cleanest possible strong in a vacuum to host and safeguard any qubits from being interfered with,” said Dafei Jin, an Argonne researcher and the principal private investigator of the project.
By utilizing a chip-scale superconducting resonator– like a miniature microwave oven– the team was able to control the caught electrons, allowing them to read and save information from the qubit, hence making it helpful for usage in future quantum computer systems.
Previous research used liquid helium as the medium for holding electrons. That product was simple to make free of defects, however vibrations of the liquid-free surface area might easily disturb the electron state and for this reason jeopardize the performance of the qubit.
After developing their platform, the team performed real-time qubit operations using microwave photons on a caught electron and characterized its quantum properties. Most significantly, the qubit obtained coherence times in the quantum state competitive with other advanced qubits.
The simpleness of the qubit platform must likewise lend itself to basic, low-priced manufacturing, Jin said.
The guarantee of quantum computing lies in the ability of this next-generation innovation to calculate certain problems much faster than classical computers. Scientist aim to combine long coherence times with the capability of numerous qubits to connect together– understood as entanglement. Quantum computer systems consequently could discover the responses to problems that would take a classical computer system several years to solve.
Consider a problem where researchers want to find the most affordable energy configuration of a protein made of many amino acids. These amino acids can fold in trillions of methods that no classical computer has the memory to handle. With quantum computing, one can utilize knotted qubits to produce a superposition of all folding configurations– providing the capability to check all possible answers at the exact same time and solve the problem more efficiently.
” Researchers would simply need to do one calculation, instead of trying trillions of possible setups,” Guo said.
For more on this research, see New Qubit Breakthrough Could Revolutionize Quantum Computing.
Recommendation: “Single electrons on strong neon as a solid-state qubit platform” by Xianjing Zhou, Gerwin Koolstra, Xufeng Zhang, Ge Yang, Xu Han, Brennan Dizdar, Xinhao Li, Ralu Divan, Wei Guo, Kater W. Murch, David I. Schuster and Dafei Jin, 4 May 2022, Nature.DOI: 10.1038/ s41586-022-04539-x.
The group released its findings in a Nature short article entitled “Single electrons on solid neon as a solid-state qubit platform.” In addition to Jin, Argonne contributors consist of first author Xianjing Zhou, Xufeng Zhang, Xu Han, Xinhao Li, and Ralu Divan. Contributors from the University of Chicago were David Schuster and Brennan Dizdar. Other co-authors were Kater Murch of Washington University in St. Louis, Gerwin Koolstra of Lawrence Berkeley National Laboratory, and Ge Yang of Massachusetts Institute of Technology.
Financing for the Argonne research study mostly came from the DOE Office of Basic Energy Sciences, Argonnes Laboratory Directed Research and Development program and the Julian Schwinger Foundation for Physics Research. Guo is supported by the National Science Foundation and the National High Magnetic Field Laboratory.
An illustration of the qubit platform made of a single electron on solid neon. Researchers froze neon gas into a solid at extremely low temperature levels, sprayed electrons from a light bulb onto the strong, and trapped a single electron there to create a qubit. After developing their platform, the group carried out real-time qubit operations using microwave photons on a trapped electron and defined its quantum properties. Most importantly, the qubit attained coherence times in the quantum state competitive with other modern qubits.
With quantum computing, one can use knotted qubits to produce a superposition of all folding configurations– providing the ability to examine all possible answers at the very same time and solve the issue more effectively.
