I can't see why this is wrong ... :/TSny said:
Moreover , if i use , let's say the index m on x (not on x that comes from angular momentum , yes on x that is alone) , then i still have the minus on ih bar ... My solutions say that it should not be there ...TSny said:
Thank you very much for your help :DTSny said:
A commutator is a mathematical operation that involves taking the difference between a product of two variables and the reverse of that product. In other words, it's the difference between XY and YX. This operation is used in various mathematical fields such as group theory and linear algebra.
The commutator is typically represented by square brackets [X,Y]. The variables X and Y can represent any mathematical object such as numbers, matrices, or vectors.
In quantum mechanics, commutators play a crucial role in determining the uncertainty principle. The uncertainty principle states that certain pairs of physical properties, such as position and momentum, cannot both be known precisely at the same time. This is due to the non-commutative nature of these properties.
The Cevi Levita symbol, also known as the Levi-Civita symbol, is a mathematical symbol used to represent the sign of a permutation. It is commonly used in vector calculus and differential geometry to denote the direction of a cross product between two vectors.
The Cevi Levita symbol is related to commutators through the concept of antisymmetry. In mathematics, a commutator is considered antisymmetric, meaning that switching the order of the variables results in the negative of the original value. Similarly, the Cevi Levita symbol is also antisymmetric, making it a useful tool in calculating commutators in various mathematical operations.