(. 298, ) ( ) .
U l
, , ( E>U), ( <U) , . . . E>U , . E<U , >l, .. . , , , . (217.5) . 298,
( 2q2=2m (E-U}/h2). : y(x)=A1eikx+B1e-ikx (221.2) ( 1); y2 ()=2iqx+2-iqx ( 2); y3(x)=A3eikx+B3e-ikx (221.3) ( 3). , 1 , (217.4),
(219.3), ( , ), , , . . ( , ). (221.3) ( ), . 3 , . 3 (221.3) . 2 E>U E<U. , , E<U . , (221.1), q= ib , b=Ö(2m (U-E)/h). q 3=0, : y1(x)=A1eikx + B1e-ikx ( 1), y 2()=2-bx+2ebx (221.5) ( 2), y 3() =3eikx ( 3). 2 (221.5) , , , . , , b l >>1, 20. y1(x), y2() y3(x) . 298, . , , 3, , , . . , . , , .
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