Recent content by Traceless

Hi again everyone, Thanks to all of you for replying. Yes, we have a flange with a coaxial feedthrough on another chamber. The initial issue was because of a deadline that prevented us from taking the time to order a new flange. Fortunately, things have changed and this was solved. However, I...

Hi everyone, Thank you for your responses. The joint is a copper wire feed-through within a flange on a UHV chamber. I've attached a poor drawing, but hopefully it portrays what I'm trying to describe. I think we've found another solution, but I'd still like to understand how this particular...

Hi, I'm in a bind trying to determine how to handle impedance matching through a joint of copper wire sandwiched between two 50-ohm coaxial cables (the joint is an interface between atmosphere and a UHV system). There is a signal pulse with a rise time of 2 ns coming through one of the coaxial...

Thank you very much for all of your help, Stephen. As you suggested, I'll try to continue the discussion in the physics section.

Thanks again, Stephen. You may be right. It could be that the question is asking for representations and simply isn't as descriptive as it perhaps should be. That may also be why I was so confused about how to find the "elements", as I'm assuming you must have the proper representation of the...

Hi Stephen, thanks for responding. As an example, there is a problem that asks us to find the elements of the group SE(2) (and another requesting the same for the group SO(2,1), followed by finding the generators and Casimir operators, with no additional information given. Given this problem as...

Hi, I'm trying to understand the process of finding the elements of a given group, such as SE(2). What I do understand is limited to finding elements of very simple symmetry groups, such as those corresponding to rotations/reflections of shapes. My overall knowledge of groups is also pretty...