December 24, 2024, 12:32:43 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Expectation value , <x+y> for particle in a 2D box?  (Read 2411 times)

0 Members and 2 Guests are viewing this topic.

Offline Mr.A

  • Regular Member
  • ***
  • Posts: 13
  • Mole Snacks: +1/-2
Expectation value , <x+y> for particle in a 2D box?
« on: June 27, 2015, 11:20:07 PM »
What does <x+y>  operator means? Do i have to calculate the average values for both x and y coordinates and add em up ? Or double integrate the wave function (2D) by x and y? Like we do for energy? Thanks.
Logged

Offline Corribus

  • Chemist
  • Sr. Member
  • *
  • Posts: 3551
  • Mole Snacks: +546/-23
  • Gender: Male
  • A lover of spectroscopy and chocolate.
Re: Expectation value , <x+y> for particle in a 2D box?
« Reply #1 on: June 28, 2015, 02:28:09 AM »
Quote from: Mr.A on June 27, 2015, 11:20:07 PM
Do i have to calculate the average values for both x and y coordinates and add em up ?
Well, does it make sense that <x+y> is the same as <x>+<y>?
You should be able to show this fairly simply.  What is the definition of the expectation value for an operator?
Logged
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman
Pages: [1]   Go Up
« previous next »
Sponsored Links