Control theory useful for a physics major?

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Discussion Overview

The discussion revolves around the relevance of control theory for physics majors, particularly those considering experimental physics in graduate school. Participants explore its applicability in various contexts, including engineering and theoretical physics.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the usefulness of a control theory class for experimental physics, suggesting a lack of responses may indicate it is not valuable.
  • Another participant humorously comments on the delayed responses, implying that the lack of engagement might reflect on the topic's importance.
  • A participant shares their positive experience with the class, noting it was enjoyable and beneficial for understanding linear algebra and electrical signals, despite not using it frequently in their job.
  • Some participants argue that control theory is more critical for engineers, particularly those in robotics, while also acknowledging its value in providing mathematical problem-solving skills applicable to real-world scenarios.
  • One participant emphasizes that the relevance of control theory depends on the specific field of work, stating that they frequently apply concepts from control theory in their experimental physics role, particularly in using PID controllers and feedback loops.
  • This participant also notes that understanding system stability can be beneficial even in more abstract theoretical physics contexts.

Areas of Agreement / Disagreement

Participants express differing views on the usefulness of control theory for physics majors, with some advocating for its relevance in experimental settings while others suggest it may not be as applicable in theoretical domains. The discussion remains unresolved regarding its overall importance.

Contextual Notes

Participants' perspectives depend on their specific fields and experiences, highlighting that the applicability of control theory may vary significantly based on individual career paths and interests.

theFencer
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Is a control theory class usueful for someone who wants to do experimental physics in grad school?
 
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So from the lack of response, I figure it's not very useful?
 
Wow...you gave us ten whole hours to answer your question.
 
theFencer said:
So from the lack of response

You got an overdamped response... That could be a controls joke... a terrible one.

It's a good class. I don't use it much at my job but it was fun to learn. I took the class for my undergrad ME. It was a good exercise in linear algebra and electrical signals.
 
Control theory is more important for engineers e.g. anyone who works in robotics, but it is also a good exposure to mathematical methods of problem solving in the real world.
 
I really depends upon what you end up doing. I use what I learned in control theory A LOT
but that is because I am an experimental physicists and happen to work in a field where we often use PID controllers for temperature control, feedback loops for stabilizing oscillators etc.
It would obviously not be quite as useful I was working in e.g. string theory.
Although I must say that having some idea about how to determine e.g. if a system is stable can really come in handy even when working on more "abstract" theory.
 

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