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buraqenigma
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How can we show [tex]\left[\hat{H},\hat{x}\right]=\frac{-i\hbar}{m} \hat{p_{x}}[/tex] ?
buraqenigma said:How can we show [tex]\left[\hat{H},\hat{x}\right]=\frac{-i\hbar}{m} \hat{p_{x}}[/tex] ?
buraqenigma said:[tex]\left[\hat{p_{x}}^2,\hat{x}\right]=\left[\hat{p_{x}},\hat{x}\right]\hat{p_{x}}+\hat{p_{x}}\left[\hat{x},\hat{p_{x}}\right][/tex] ( from leibniz rule)
buraqenigma said:if we know [tex]\left[\hat{p}_x,\hat{x}\right]=-i\hbar[/tex] we can show this equation. Thanks my friends for your helps.
The commutativity equation of Hamilton and position operators is a mathematical relationship that describes the order in which these operators can be applied to a system. It states that the order in which these operators are applied does not affect the final result, meaning that they commute with each other.
The commutativity equation is essential in quantum mechanics because it allows us to determine the uncertainty in the measurement of position and momentum of a particle. It also helps us understand the fundamental principles of quantum mechanics, such as the Heisenberg uncertainty principle.
The commutativity equation is directly related to the uncertainty principle as it is used to calculate the uncertainty in the measurement of position and momentum. The equation shows that the position and momentum operators do not commute, which leads to the uncertainty principle.
No, the commutativity equation only applies to a specific set of operators, such as the Hamilton and position operators. Other operators, such as the momentum operator, do not commute and therefore cannot be described by this equation.
The commutativity equation plays a crucial role in the time evolution of a quantum system. It allows us to determine the time evolution of a system by using the Hamilton operator, which is defined in terms of the commutator with the position and momentum operators. This equation is essential for predicting the behavior of quantum systems over time.