The 2023 Nobel Prize in physics has been awarded to Pierre Agostini, Ferenc Krausz and Anne L’Huillier for creating “flashes of sunshine which may be short enough to take snapshots of electrons’ extremely speedy movements,” the Royal Swedish Academy of Sciences introduced in Stockholm on Tuesday.

https://vikings-man.co.kr/ Electrons move so rapidly that their actions were previously thought inconceivable to follow.

But the three physicists “have demonstrated a approach to create extraordinarily brief pulses of light that can be used to measure the speedy processes in which electrons transfer or change energy,” the committee said.

It praised the laureates for giving “humanity new instruments for exploring the world of electrons inside atoms and molecules.”

The movements of electrons inside atoms and molecules are so fast that they are measured in attoseconds ? an almost incomprehensibly brief unit of time. “An attosecond is to at least one second as one second is to the age of the universe,” the committee explained.

“They have been able to, in a sense, provide an illumination tool that enables us to look at the assembly of molecules: how issues come together to make a molecule,” Bob Rosner, president of the American Physical Society and a professor on the University of Chicago, told CNN.

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These actions “happen so quickly that usually we do not know how they actually happen or what the sequence of occasions is,” stated Rosner. But the laureates’ work means scientists can now observe how these movements occur, he added.

“Imagine constructing a home. You have basis, walls, roof and so on. There’s a sequence to something complicated. For a molecule, should you don’t get the sequence proper, you won’t be able to assemble it,” said Rosner..


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Last-modified: 2023-10-03 (火) 21:47:09 (219d)