Are py and pz Compatible Operators? Exploring the Commutation Equation

  • Thread starter drFredkin
  • Start date
  • Tags
    Operator
In summary, the commutation equation is a mathematical equation used in quantum mechanics to determine the compatibility of two operators. If the result is zero, they are compatible, and if it is non-zero, they are incompatible. Compatible operators indicate that they can be measured simultaneously without affecting each other's measurements, allowing for precise measurements of multiple properties of a system. The compatibility of operators is important in quantum mechanics as it helps us understand and predict the behavior of quantum systems.
  • #1
drFredkin
2
0

Homework Statement


py and pz are components of the momentum . Do they compatible operators?

Homework Equations


compatible operators equation

The Attempt at a Solution


i think I have to use commutation
 
Last edited:
Physics news on Phys.org
  • #2
Hi drFredkin. Welcome to the forum.

A little context might help. What do you mean "compatible operator?" Since you did not write down "compatible operators equation" it is hard to guess what you want.
 
  • Like
Likes drFredkin
  • #3
They are certainly "compatible" in the sense that they commute and can be simultaneously diagonalized...
 
  • Like
Likes drFredkin

1. What is the commutation equation?

The commutation equation is a mathematical equation that describes the relationship between two operators in quantum mechanics. It is used to determine whether two operators are compatible, meaning they can be measured simultaneously, or if they are incompatible, meaning they cannot be measured simultaneously.

2. How do you determine if two operators are compatible?

To determine if two operators are compatible, you can use the commutation equation. If the result of the equation is equal to zero, the operators are compatible. If the result is non-zero, the operators are incompatible.

3. What do compatible operators indicate?

Compatible operators indicate that they share a common set of eigenstates, meaning they can be measured simultaneously without affecting each other's measurements. This is important in quantum mechanics because it allows for the precise measurement of multiple properties of a system at the same time.

4. Are py and pz compatible operators?

It depends on the specific system and operators being considered. In general, operators that correspond to different physical properties (such as momentum and position) are incompatible. However, if the system is symmetrical, these operators may commute and be compatible.

5. Why is it important to study the compatibility of operators?

Studying the compatibility of operators is important in quantum mechanics because it allows us to determine which properties of a system can be measured simultaneously and accurately. This information is crucial for understanding the behavior of quantum systems and making accurate predictions about their behavior.

Similar threads

  • Introductory Physics Homework Help
Replies
2
Views
778
  • Introductory Physics Homework Help
Replies
23
Views
1K
Replies
3
Views
2K
  • Advanced Physics Homework Help
Replies
5
Views
1K
  • Quantum Physics
Replies
13
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
1K
  • Quantum Physics
Replies
1
Views
782
Replies
9
Views
1K
  • Introductory Physics Homework Help
Replies
10
Views
10K
  • Introductory Physics Homework Help
Replies
14
Views
2K
Back
Top