1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Secular matrix

  1. Jan 9, 2004 #1
    does anybody know the origins behind the *name* secular matrix?

    i don't understand why a secular matrix would be called... secular.
     
  2. jcsd
  3. Jan 9, 2004 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    First, the term "secular" matrix is not a mathematical term- it is a physics term. If you look up the word "secular" in a dictionary, you will find that one of its meanings has to do with time. The "secular matrix" in quantum physics is the matrix that represents the evolution of a an operator over time.
     
  4. Jan 9, 2004 #3

    selfAdjoint

    User Avatar
    Staff Emeritus
    Gold Member
    Dearly Missed

    Saeculum is the Latin noun meaning "a long period of time", sometimes interpreted in modern times as a century. Nominative plural saecula, plural genitive saeculorum (as in the great seal of the US: Novus ordo saeculorum = "A new order for the ages")

    Secular effects in Astronomy are those that take place over a long time, gradually accumulating.

    The other meaning of secular, "not religious", comes from the division in the middle ages of topics that were religious = heavenly = outside of time, versus the other kind that were bound to the flow of time found here below.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Secular matrix
  1. Help with a matrix (Replies: 1)

Loading...