Quantum weirdness

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Quantum weirdness encompasses the aspects of quantum mechanics that challenge and defy human physical intuition.{{cite book |author=Paul Sukys |title=Lifting the Scientific Veil: Science Appreciation for the Nonscientist |publisher=Rowman & Littlefield |year=1999 |isbn=978-0-8476-9600-0 |url=https://books.google.com/books?id=WEM4hqxJ-xYC&pg=PA135 |quote=Quantum weirdness refers to those quantum phenomena that appear to defy common experience when explained in terms of everyday life. |quote-page=135}}

Human physical intuition is based on macroscopic physical phenomena as are experienced in everyday life, which can mostly be adequately described by the Newtonian mechanics of classical physics.{{cite book |last=Ball |first=Philip |authorlink=Philip Ball |year=2018 |title=Beyond Weird: Why Everything You Thought You Knew about Quantum Physics is Different |publisher=Bodley Head |isbn=978-1-84792-457-5}} Early 20th-century models of atomic physics, such as the Rutherford–Bohr model, represented subatomic particles as little balls occupying well-defined spatial positions, but it was soon found that the physics needed at a subatomic scale, which became known as "quantum mechanics", implies many aspects for which the models of classical physics are inadequate.{{cite book |title=Quantum Weirdness |author=William J. Mullin |publisher=Oxford University Press |year=2017 |isbn=978-0-19-879513-1}} These aspects include: {{cn|date=March 2024}}

quantum entanglement;{{cite magazine |author=Lisa Grossman |title=Universe's Quantum Weirdness Limits its Weirdness |magazine=Wired |date=November 18, 2010 |url=https://www.wired.com/2010/11/entangled-uncertainty/}}{{cite journal |author=Hans Christian von Baeyer |authorlink=Hans Christian von Baeyer |title=Quantum Weirdness? It's All in Your Mind |journal=Scientific American |date=2013 |volume=308 |number=6 |pages=46–51 |doi=10.1038/scientificamerican0613-46|pmid=23729070 |bibcode=2013SciAm.308f..46V }}.
quantum nonlocality, referred to by Einstein as "spooky action at a distance"; see also EPR paradox;
quantum superposition, presented in dramatic form in the thought experiment known as Schrödinger's cat;{{cite journal |author=Carlo Rovelli |authorlink=Carlo Rovelli |title=Quantum weirdness isn't weird – if we accept objects don't exist |journal=New Scientist |date=March 10, 2021 |url=https://www.newscientist.com/article/mg24933250-500-quantum-weirdness-isnt-weird-if-we-accept-objects-dont-exist/ |accessdate=May 12, 2024}}
the uncertainty principle;
wave–particle duality;{{cite journal |author=Tom Siegfried |title=Quantum weirdness |journal=ScienceNews |volume=178 |number=11 |date=November 20, 2010}}
the probabilistic nature of wave function collapse, decried by Einstein, saying, "God does not play dice".

Quantum weirdness

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Further reading