Linker IT Software
Google
Web www.oraxcel.com
menubar-top-links menubar-top-rechts
Home Help Search Login
Welcome, Guest. Please Login.
SQL*XL: Database to Excel bridge litLIB: Excel power functions pack ExcelLock: Locking and securing your valuable Excel spreadsheets encOffice: Protect your Excel file easy and safe encOffice: Protect your Excel file easy and safe
Pages: 1
Heisenberg's uncertainty principle (Read 3540 times)
Gerrit-Jan Linker
YaBB Administrator
*****




Posts: 75
Heisenberg's uncertainty principle
13.01.08 at 22:46:33
 
Heisenberg's uncertainty principle
 
In quantum physics the Heisenberg uncertainty principle states that you cannot measure at the same time the position and the momentum of a particle accurately.
 
If you can measure the position accurately you cannot measure the momentum accurately and vise versa.
 
Another way to state the Heisenberg uncertainty (indetermination) principle is:
No predictive laws exist containing references to the simultaneous position and momentum of a particle.
 
So instead of saying that it is uncertain it is called indeterminate: it may be certain (who knows?) but you just cannot determine it simultaneously.
 
Heisenberg indetermination relationship:
ΔfΔg >= <[f,g]>
The uncertainty in the value for observable f or g is greater or equal to half of the average value of the commutator of operators f and g. Hence, if f and g commute they can be simultaneously accurately measured.
 
See also:
Uncertainty principle
http://en.wikipedia.org/wiki/Uncertainty_principle#Matrix_Mechanics
The Uncertainty Principle  
http://hyperphysics.phy-astr.gsu.edu/Hbase/uncer.html
Back to top
 
« Last Edit: 07.02.08 at 21:47:57 by Gerrit-Jan Linker »  

Gerrit-Jan Linker
Linker IT Software
Email WWW Gerrit-Jan Linker   IP Logged
Pages: 1