present great promise for solving a wide range of problems. They might, for example, lead to more sustainable materials and novel medicines and perhaps solve the most challenging issues in fundamental physics. However, compared to today's classical computers, simple quantum computers are more prone to errors.According to a report published in the journal, a group of researchers led by Caltech is among the first to demonstrate a form of quantum eraser.
, a professor of physics at Caltech. "But we show that with some careful control, we can precisely locate and erase certain errors without consequence, which is where the name erasure comes from."Quantum computers are founded on the laws of physics that govern the subatomic domain, such as entanglement, in which particles remain connected to and mimic one another even when not in direct contact.
"The atoms in our quantum system talk to each other and generate entanglement," explains Pascal Scholl, the other co-lead author of the study and a former postdoctoral scholar at Caltech now working at a quantum computing company in France calledEntanglement is what allows quantum computers to outperform classical computers. "However, nature doesn't like to remain in these quantum entangled states," Scholl explains.
When erroneous atoms are hit with a laser, the new error-catching technique causes them to fluoresce or light up. "We have images of the glowing atoms that tell us where the errors are, so we can either leave them out of the final statistics or apply additional laser pulses to actively correct them," Scholl explains.
Finally, these findings encourage quantum computing devices that utilize Rydberg neutral atom arrays. "Neutral atoms are the most scalable type of quantum computer, but they didn't have high-entanglement fidelities until now," added Shaw.Minimizing and understanding errors is critical for quantum science, both in noisy intermediate scale quantum devices.
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Source: IntEngineering - 🏆 287. / 63 Read more »
Source: IntEngineering - 🏆 287. / 63 Read more »