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QuoteRef: heisW_1927




Topic:
quantum mechanics
Topic:
science as measurement
Topic:
discrete vs. continuous
Topic:
special relativity
Topic:
quantum electrodynamics
Topic:
physics
Topic:
metaphysics and epistemology
Group:
philosophy of science

Reference

Heisenberg, W., "Uber den anschaulichen inhalt der quantenttheoretichen kinernatik und mechanik", Zeitschrift fur Physik, 43, pp. 172-198, 1927. Google

Other Reference

as "The physical content of quantum kinematics and mechanics," p. 56-84 with commentary in Wheeler, J.A., and Zurek W. H. (ed.) Quantum Theory and Measurement, Princeton New Jersey USA: Princeton University Press, 1983

Quotations
58 ;;Quote: only the theory itself can decide what is and is not observable
58 ;;Quote: quantum mechanics has indeterminacy relations where mechanical variables are associated in conjugate pairs
59 ;;Quote: complementarity is particle-wave duality applied to indeterminacy relations; indeterminacy ensures the internal consistency of each extreme view
59+;;Quote: momentum-energy indeterminacy refers to particles while space-time indeterminacy refers to waves
abstract ;;Quote: the statistical relations of quantum mechanics are due to the indeterminacy of conjugate quantities such as momentum and energy
63 ;;Quote: processes are discontinuous in small regions and short times; it is clearly meaningless to speak about one velocity at one position
64 ;;Quote: the product of location precision and momentum precision is proportional to Plank's constant
68 ;;Quote: concepts of classical, physical theory have an exact analog for atomic processes; but, conjugate quantities suffer an indeterminacy purely by the observational procedures
68 ;;Quote: the word "simultaneous" requires the speed of light; sharper definitions are not possible; a constant speed of light does not contradict concepts of position, velocity, and time
76 ;;Quote: consider reflection of a beam of electrons at a grating; if we know where an electron hits, its velocity must be so high that its de Broglie wavelength is much smaller than the grating, yielding classical reflection
82 ;;Quote: quantum-theoretical quantity is a matrix whose diagonal is the classical value with nondiagonal terms as the uncertainty
83 ;;Quote: the laws of conservation of momentum and energy hold exactly in quantum mechanics
83+;;Quote: "When we know the present precisely, we can predict the future" is not the conclusion but the assumption; observation is a selection that limits what is possible; quantum mechanics establishes the final failure of causality
83 ;;Quote: physics should only describe the correlation of observations; there is no real world with causality

Related Topics up

Topic: quantum mechanics (103 items)
Topic: science as measurement (36 items)
Topic: discrete vs. continuous (47 items)
Topic: special relativity (73 items)
Topic: quantum electrodynamics (34 items)
Topic: physics (51 items)
Topic: metaphysics and epistemology (99 items)
Group: philosophy of science   (10 topics, 406 quotes)

Collected barberCB 10/06
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