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The Government of Canada’s terminology and linguistic data bank.
INDETERMINACY PRINCIPLE [2 records]
Record 1 - internal organization data 2023-10-17
Record 1, English
Record 1, Subject field(s)
- Mathematics
- Relativity (Physics)
- Mechanics
Record 1, Main entry term, English
- Heisenberg's uncertainty principle
1, record 1, English, Heisenberg%27s%20uncertainty%20principle
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- uncertainty principle 1, record 1, English, uncertainty%20principle
correct
- indeterminacy principle 2, record 1, English, indeterminacy%20principle
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[The theory formulated by Werner Heisenberg stating] that the position and the velocity of an object cannot both be measured exactly, at the same time, even in theory. 2, record 1, English, - Heisenberg%27s%20uncertainty%20principle
Record number: 1, Textual support number: 1 CONT
The uncertainty principle is one of the most famous (and probably [most] misunderstood) ideas in physics. It tells us that there is a fuzziness in nature, a fundamental limit to what we can know about the behaviour of quantum particles and, therefore, the smallest scales of nature. 3, record 1, English, - Heisenberg%27s%20uncertainty%20principle
Record 1, French
Record 1, Domaine(s)
- Mathématiques
- Relativité (Physique)
- Mécanique
Record 1, Main entry term, French
- principe d'indétermination
1, record 1, French, principe%20d%27ind%C3%A9termination
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- inégalités de Heiseinberg 2, record 1, French, in%C3%A9galit%C3%A9s%20de%20Heiseinberg
correct, feminine noun, plural
- principe d'incertitude 1, record 1, French, principe%20d%27incertitude
correct, masculine noun
- principe d'incertitude de Heisenberg 3, record 1, French, principe%20d%27incertitude%20de%20Heisenberg
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Théorie formulée par Werner Heisenberg énonçant que la position et la vitesse d'un objet ne peuvent être mesurées exactement en simultané, et ce, même d'un point de vue théorique. 4, record 1, French, - principe%20d%27ind%C3%A9termination
Record number: 1, Textual support number: 1 CONT
Mal nommé, le principe d'incertitude de Heisenberg est plus correctement désigné aujourd'hui sous le terme des inégalités de Heisenberg. Ces inégalités nous indiquent les limites sur la pertinence de l'emploi des concepts d'ondes et de particules classiques pour décrire les phénomènes à l'échelle atomique, comme ceux portant sur les électrons et la lumière. 2, record 1, French, - principe%20d%27ind%C3%A9termination
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-04-18
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Physics
Record 2, Main entry term, English
- Heisenberg uncertainty principle
1, record 2, English, Heisenberg%20uncertainty%20principle
correct
Record 2, Abbreviations, English
- HUP 2, record 2, English, HUP
correct
Record 2, Synonyms, English
- indeterminacy principle 3, record 2, English, indeterminacy%20principle
correct
- uncertainty principle 4, record 2, English, uncertainty%20principle
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Heisenberg Uncertainty Principle. An odd aspect of Quantum Mechanics is contained in the Heisenberg Uncertainty Principle (HUP). The HUP can be stated in different ways, let me first talk in terms of momentum and position. If there is a particle, such as an electron, moving through space, I can characterize its motion by telling you where it is (its position) and what its velocity is (more precisely, its momentum). Now, let me say something strange about what happens when I try to measure its positions and momentum. In the Quantum Mechanical world, the idea that we can measure things exactly breaks down. Let me state this notion more precisely. Suppose a particle has momentum p and a position x. In a Quantum Mechanical world, I would not be able to measure p and x precisely. There is an uncertainty associated with each measurement, e.g. there is some dp and dx, which I can never get rid of even in a perfect experiment!!!. This is due to the fact that whenever I make a measurement, I must disturb the system. (In order for me to know something is there, I must bump into it.) The size of the uncertainties are not independent, they are related ... 2, record 2, English, - Heisenberg%20uncertainty%20principle
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Physique
Record 2, Main entry term, French
- principe d'incertitude d'Eisenberg
1, record 2, French, principe%20d%27incertitude%20d%27Eisenberg
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- principe d'incertitude 2, record 2, French, principe%20d%27incertitude
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Commençons par le principe d'incertitude d'Eisenberg : Il affirme qu'on ne peut pas connaître avec précision à la fois la position et la vitesse d'une particule. [...] Si l'on ne peut pas connaître sa position et sa vitesse, c'est parce que qu'une particule quantique n'étant pas ponctuelle, n'a pas à la fois une position et une vitesse définies (c'est un autre univers). Les objets quantiques admettent tout un spectre de valeurs pour la position et la vitesse. Cette limite ne porte pas sur la précision des mesures; elle porte sur la validité des concepts classiques pour une particule quantique. 1, record 2, French, - principe%20d%27incertitude%20d%27Eisenberg
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física atómica
- Física
Record 2, Main entry term, Spanish
- principio de indeterminación de Heisenberg
1, record 2, Spanish, principio%20de%20indeterminaci%C3%B3n%20de%20Heisenberg
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 CONT
Estipula el principio de indeterminación de Heisenberg que, cuanto más corta sea la duración de un estado, más incierta será su energía. 1, record 2, Spanish, - principio%20de%20indeterminaci%C3%B3n%20de%20Heisenberg
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