Задачи по квантовой механике. Часть 2. Корнев А.С. - 48 стр.

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3Z
2a
0
r = t
Z
0
f
20
(r)f
10
(r)r
2
dr =
2
Z
3
a
3
0
Z
0
µ
1
Zr
2a
0
exp
µ
3Zr
2a
0
r
2
dr =
=
8
27
2
Z
0
t
2
µ
1
1
3
t
e
t
dt =
8
27
2
µ
2!
1
3
· 6!
= 0,
¤
r
1
r
1
= 4
Z
3
a
3
0
Z
0
r exp
µ
2Zr
a
0
dr =
Z
a
0
Z
0
t e
t
dt =
Z
a
0
.
2T = NU
T U
U(r) r
N
U(r) = Ze
2
/r r
1
2T = U
1s
T + U = E
1s
=
1
2
Z
2
e
2
a
0
.
T U
U = Ze
2
r
1
= Z
2
e
2
a
0
r
1
=
Z
a
0
¤
µ
a
                                                               1[

G,!#;-.)  2 9 7 61? ^ 9 7 : ?            - 2 )*  ;* E       8   3Z
                                                                                                     r=t
                                                                                                         ^       ;-* A
                                                                                                 2a0
    Z                                      µ        ¶    µ       ¶
            ∞
                                2
                                 √ Z3 Z ∞       Zr           3Zr
            f20 (r)f10 (r)r dr = 2 3         1−       exp −        r2 dr =
        0                             a0 0      2a0          2a0
                                 Z   ∞   µ    ¶               µ          ¶
                            8√         2    1   −t       8√         1
                        =      2      t 1 − t e dt =        2 2! − · 6! = 0,
                           27      0        3           27          3
H N%/- !#.\"O)*6.7                                                                                  ¤
f+(*,+ BG g G            T l: B€5769BDF^] 5 R > KoE > >jk E  E B9>    r−1
                                                                                            4 G 5 EDG 4 EDG \ 5 G f5 F G P E B=B
 4 GIK[G R€GIKoG GIKoGWXME=GIHJG M< F G \w]Q * ^ 2T = N U ^
+  T U  !# !#  !8# 2O2 "!#" 2 L; X/-. 2 ] 
   + 4!#!8*E a;#;-+6 ! 2 U (r) ∼ rN 7
       I %  U (r) = −Ze2 /r ∼ r−1 W * ,6- P; 6 
  A
                                                        2T = −U
                                                                                                             9 7 [ ?
   R€G Blk?4 G 69] E=G \ !86X%'!#%!# 2  7
        I 1s !#%!8 2 
                                              T + U = E = − Z2 .
                                                                      1 e2                                    9 7 m?
U76  2   2 9 7 [ ? H9 7 m ? !#%*!#%!#-. T U ^ ;-* A
                                                              1s
                                                                          2      a0

                               e2 ^ "  −1              Z7
     a EFQ  *  a0 N> ;%!##S!a80+ WEF! -  2  +6-
U = −Ze2 r−1 = −Z 2                               r =

 aN >;a! ! a) N%3E 8>!# !# 2 Q 7                                   ¤
f+(*,+ BG G )               < i F B 8 R€G 4 E B d E > R&H BDB =:  R BD:=>[5 g GMi
X >[5fg MG E f> : EDG|H 96 8 MX G g GWi G 2F > DE c B€[< 69] EDMG i Pl\ > R < K BD8 5 < a n