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First reported by physics.yale.edu
‘Check your ingredients’: A new blueprint for using Fermi’s ‘Golden Rule’

'Check your ingredients': A new blueprint for using Fermi's 'Golden Rule'

8h agoen
Read on phys.org

From the article

Underpinning much of modern technology, from smartphones to scanning tunneling microscopes to particle colliders, is Fermi's Golden Rule. Named for 20th-century Italian American physicist Enrico Fermi (but actually discovered by British physicist Paul Dirac), the rule is a formula that connects what can be measured in an experiment—such as how fast atoms "jump" between energy states—to the microscopic properties of a quantum mechanical system. The formula is taught in every undergraduate quantum physics class.
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