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Diffusion Reaction Interaction for a Pair of Spheres - ETD ...

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They can be calculated exactly <strong>for</strong> any <strong>of</strong> the nonnegative integer indices i, m, and<br />

n. Equations (2.40) – (2.43) are similar to continued fractions, and are well suited<br />

to nested computer calculations.<br />

In order to calculate the reaction probability P <strong>of</strong> equation (2.23) it is<br />

necessary by using equations (2.38) and (2.39) to generate an expression <strong>for</strong> h .<br />

Using equation (2.38) <strong>for</strong><br />

n = i = 0<br />

∑ ∞<br />

m=<br />

0<br />

( 0)<br />

( 0)<br />

= + K Q h . (2.44)<br />

10<br />

0<br />

0m<br />

1m<br />

h<br />

and applying equation (2.39) <strong>for</strong> i = 0 to eliminate h from the right hand side <strong>of</strong><br />

equation (2.44)<br />

∞ ⎡ ( 0)<br />

( 0)<br />

⎤<br />

⎢Q0<br />

+ ∑ K 0m<br />

h1m<br />

⎥ ∞<br />

( 0)<br />

( 0)<br />

m=<br />

1<br />

( 0)<br />

h = + ⎢<br />

⎥<br />

10 Q0<br />

K 00<br />

+<br />

( 0)<br />

∑ K 0m<br />

h1m<br />

. (2.45)<br />

⎢ 1− K 00 ⎥ m=<br />

1<br />

⎢<br />

⎣<br />

⎥<br />

⎦<br />

( 1)<br />

Rearranging and collecting the coefficients <strong>of</strong> with Q from equation (2.27)<br />

h1m ( 1)<br />

<strong>for</strong> n = 0 and K from equation (2.29) <strong>for</strong> n = 0<br />

0m<br />

∑ ∞<br />

m=<br />

1<br />

() 1<br />

() 1<br />

10<br />

= + K Q h . (2.46)<br />

10<br />

0<br />

29<br />

0m<br />

1m<br />

h<br />

0<br />

10

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