Heisenberg uncertainty principle6/17/2023 It is possible for other, less direct means of measurement to affect the electron. Particle physics Īn electron is detected upon interaction with a photon this interaction will inevitably alter the velocity and momentum of that electron. However, the need for the "observer" to be conscious (versus merely existent, as in a unicellular microorganism) is not supported by scientific research, and has been pointed out as a misconception rooted in a poor understanding of the quantum wave function ψ and the quantum measurement process. Despite the "observer effect" in the double-slit experiment being caused by the presence of an electronic detector, the experiment's results have been interpreted by some to suggest that a conscious mind can directly affect reality. ![]() Physicists have found that observation of quantum phenomena by a detector or an instrument can change the measured results of this experiment. This effect can be found in many domains of physics, but can usually be reduced to insignificance by using different instruments or observation techniques.Ī notable example of the observer effect occurs in quantum mechanics, as demonstrated by the double-slit experiment. While the effects of observation are often negligible, the object still experiences a change (leading to the Schrödinger's cat thought experiment). Similarly, seeing non-luminous objects requires light hitting the object to cause it to reflect that light. ![]() A common example is checking the pressure in an automobile tire, which causes some of the air to escape, thereby changing the pressure to observe it. ![]() This is often the result of utilizing instruments that, by necessity, alter the state of what they measure in some manner. In physics, the observer effect is the disturbance of an observed system by the act of observation.
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