Heisenberg uncertainty principle


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Related to Heisenberg uncertainty principle: Pauli exclusion principle

Heisenberg uncertainty principle

(ˈhaɪzənˌbɜːɡ)
n
(General Physics) a more formal name for uncertainty principle

uncer′tainty prin`ciple


n.
the quantum-mechanical principle, formulated by Heisenberg, that measuring either of two related quantities, as position and momentum or energy and time, produces uncertainty in measurement of the other.
[1930–35]
References in periodicals archive ?
This length leads us to a generalized uncertainty principle (GUP) instead of the standard Heisenberg uncertainty principle, because a particle is not a point-like particle in the context of these candidate theories anymore.
Therefore the Heisenberg uncertainty principle gets additional correction due to the presence of a quantum gravity, which is well known as Generalized Uncertainty Principle (GUP) [10,11], given by
(1) Smoothed Pseudo Wigner-Ville distribution: Wigner-Ville distribution has a fine time-frequency resolution and can reach the low boundary of Heisenberg uncertainty principle. It is defined as follows [19]:
His description of quantum mechanics leading into the Heisenberg uncertainty principle is a good example: "...we couldn't study the finer detail of systems in a passive nondestructive way...the energy that we'd have to pump into a region to sense and interact with fine detail would be so drastic that it could destroy or dramatically change the very systems that we were trying to measure...we found ourselves relying on probabilities as it became increasingly difficult to distinguish between pre-existing effects and those caused by our own attempted measurement process."
(5.) According to the Heisenberg uncertainty principle, it is impossible to observe an electron without changing it.
While she cooks him crayfish and calms his anxiety attacks with Fred Astaire movies, Boris alternately bemoans Melody's dimwittedness and regales her eager mind with everything from the Heisenberg uncertainty principle to a "Mikado"-like list of petty crimes that should be punishable by death.
Their input not only would help with particular knowledge gaps that the book cannot fill, but they also might help clarify some subtler distinctions that Middleton ignores, such as those between complementarity and indeterminacy in the discussion of the Heisenberg uncertainty principle, or those between weak and strong versions of the anthropic principle.
For Lubin, the Zapruder film is a "crucial cinematic text of the twentieth century," albeit "less a Rosetta stone than an illustration of the Heisenberg uncertainty principle." Interrogated under the klieg light of history, this strip of film isn't so much a revelation of truth as the breakdown of representation--and so too Shooting Kennedy.
Godel's Incompleteness Theorem is to mathematics what the Heisenberg Uncertainty Principle is to physics.
The lack of clarity brings to mind another law of physics: the Heisenberg Uncertainty Principle. The principle, which recently re-emerged in public awareness by virtue of its role in the Pulitzer Prize-winning play Copenhagen, postulates that key physical quantities (for example, position and momentum) are paired up in quantum theory and, further, that the more precisely the position of a particle is determined, the less precisely its momentum can be assessed, and vice versa.
The Heisenberg uncertainty principle and the uncertainty principle for self-adjoint operators have been known and applied for decades.
We know that subjective tests result in different answers depending on the observer and when the observation is made--the Heisenberg uncertainty principle as applied to accounting.