home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Info-Mac 4
/
Info_Mac IV CD-ROM (Pacific HiTech Inc.)(August 1994).iso
/
Science
/
QuantumQT Folder
/
QuantumMovieGuide.txt
< prev
Wrap
Text File
|
1994-03-06
|
2KB
|
44 lines
Animated Plots of Y*(x,t) Y(x,t) for Mixed States
L. L. Tankersley, USNA Physics
tank@n1.usna.navy.mil
tank@charleston.nadn.navy.mil
These plots are preliminary and the basis states have not been normalized.
Box States: Infinite square well -0.5 < x < 0.5
BoxStates.1+2 Y(x,t) = Y1(x,t) + Y2(x,t)
BoxStates.1+3 Y(x,t) = Y1(x,t) + Y3(x,t)
BoxStates.1+1.4*2+2 Y(x,t) = Y1(x,t) + 1.4 Y2(x,t) + Y3(x,t)
Harmonic Oscillator
OscStates.0+1 Y(x,t) = Y0(x,t) + Y1(x,t)
OscStates.012 Y(x,t) = Y0(x,t) + Y1(x,t) + Y2(x,t)
OscStates.012345 Y(x,t) = .3 Y0(x,t) + .8 Y1(x,t) + Y2(x,t) +
Y3(x,t) + .8 Y4(x,t) + .33 Y5(x,t)
The following are estimates of various expectation values
for the state above.
<x> = 2.152 cos[omega t] <p> = m {- 2.152 omega sin[omega t]
<x^2> = 3.0136 + 1.906 cos[2 omega t]
<p^2> = (h-bar)^2 {3.0136 - 1.906 cos[2 omega t]}
delta-x delta-p = 0.565 h-bar at t = 0.
Note that the uncertainty product has local minima when |<x>|
is a maximum. The uncertainty product 'oscillates' and is somewhat
larger at other times.
units: Sqrt[Sqrt[k m]/h-bar] = 1
***State with no movie
OscStates.012345 Y(x,t)=.38 Y0(x,t)+.76 Y1(x,t)+1.05 Y2(x,t)
.99Y3(x,t) +.73 Y4(x,t) + .33 Y5(x,t)
delta-x delta-p = 0.535 h-bar at t = 0.
OscStates.0->10 Y(x,t) = .011 Y0(x,t)+.043 Y1(x,t)+.11 Y2(x,t) +
.224 Y3(x,t)+.37 Y4(x,t)+.52 Y5(x,t) +
.63 Y6(x,t)+.64 Y7(x,t)+.545 Y8(x,t) +
.37 Y9(x,t) + .17 Y10(x,t)
delta-x delta-p = 0.558 h-bar at t = 0.
More Physics Education software is available by anonymous ftp
on 128.8.111.252 in directory usna-aapt/education