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Bashyboy
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In Quantum Mechanics, why do the dynamical variables become operators? What is the justification or motivation, if any exist?
Bashyboy said:In Quantum Mechanics, why do the dynamical variables become operators? What is the justification or motivation, if any exist?
Bashyboy said:In Quantum Mechanics, why do the dynamical variables become operators? What is the justification or motivation, if any exist?
Bashyboy kspace:is this argument easily extended to all other observables, because all dynamical variables can be written in terms of momentum?
kspace said:As the others have pointed out, the notion of an operator is axiomatic to quantum mechanics. This is not very satisfing though. .
Dynamical variables are physical quantities that describe the state of a system and change over time. Examples of dynamical variables include position, velocity, and force.
In quantum mechanics, dynamical variables are represented as operators, which act on the wave function of a system. The expectation value of a dynamical variable can be obtained by applying the operator to the wave function.
Using operators to represent dynamical variables allows for a more precise description of quantum systems. It also allows for the prediction of the behavior of a system under different conditions.
No, dynamical variables cannot be measured directly. They can only be inferred from measurements of other physical quantities, such as position or momentum.
Dynamical variables change over time according to the equations of motion, which describe how these variables evolve in a given system. This can be determined using the Hamiltonian operator in classical mechanics and the Schrödinger equation in quantum mechanics.