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Does not necessarily introduce uncertainty
- A new experiment shows that measuring a quantum system does not necessarily introduce uncertainty
www.scientificamerican.com/article/common-interpretation-of-heisenbergs-uncertainty-principle-is-proven-false/Common Interpretation of Heisenberg's Uncertainty Principle ...
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Does measuring a quantum system introduce uncertainty?
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Measuring a quantum system generally changes the quantum state that describes that system. This is a central feature of quantum mechanics, one that is both mathematically intricate and conceptually subtle.
Sep 11, 2012 · A new experiment shows that measuring a quantum system does not necessarily introduce uncertainty. The study overthrows a common classroom explanation of why the quantum world appears so...
- Geoff Brumfiel
- 2012
Sep 11, 2012 · A new experiment shows that measuring a quantum system does not necessarily introduce uncertainty. The study overthrows a common classroom explanation of why the quantum world appears so...
The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which certain pairs of physical properties, such as position and momentum, can be simultaneously known.
Heisenberg’s uncertainty principle, which imposes intrinsic restrictions on our ability to predict the outcomes of incompatible quantum measurements to arbitrary precision, demonstrates one of the key differences between classical and quantum mechanics.
Jun 12, 2023 · Our uncertainty relations apply to all interactive measurements, including (a) passive measurements (framed by standard uncertainty relations) and (b) two-time measurements, where a quantum system first passes a quantum instrument that incorporates both a measurement outcome and the output state and later gets measured, as described by the ...
Jul 23, 2024 · If the position of a macroscopic object with a mass of, say, one gram is measured with a precision of 10 −6 metre, the uncertainty principle states that its velocity cannot be measured to better than about 10 −25 metre per second. Such a limitation is hardly worrisome.