Задачи по квантовой механике. Часть 2. Корнев А.С. - 55 стр.

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}k
0
}
2
2x
2
0
Z
+
−∞
w(p) dp = 1
¤
Z
1s
Ψ
1s
(r) =
s
Z
3
πa
3
0
exp
µ
Z|r|
a
0
,
a
0
1s
c
1s
(p) =
1
π
2
µ
Z
2}a
0
3
/
2
Z
exp
½
Z|r|
a
0
i
}
pr
¾
d
3
r.
Oz p
θ
p pr = pr cos θ d
3
r = r
2
dr sin θ dθ dϕ
c
1s
(p) =
1
π
2
µ
Z
2}a
0
3
/
2
Z
0
Z
π
0
r
2
exp
µ
Zr
a
0
×
× exp
µ
i
}
pr cos θ
sin θ dθ dr
Z
2π
0
dϕ.
2π θ
cos θ = t sin θ dθ = dt
cos 0 = 1 cos π = 1
Z
π
0
exp
µ
i
}
pr cos θ
sin θ dθ =
Z
1
1
e
i
}
prt
dt =
i}
pr
³
e
ipr/}
e
ipr/}
´
;
Z
0
r
2
e
Zr/a
0
1
r
e
±ipr/}
dr =
Z
0
r exp
½
µ
Z
a
0
i
}
p
r
¾
dr =
µ
Z
a
0
i
}
p
2
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                                                          s
                                        Ψ1s (r) =
                                                              Z3
                                                                      µ
                                                                   exp −
                                                                         Z|r|
                                                                              ¶
                                                                                ,
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                                1
                      c1s (p) = 2
                                          µ
                                               Z
                                                      ¶ 3/2 Z            ½
                                                                      exp −
                                                                            Z|r|  i
                                                                                     ¾
                                                                                 − pr d3 r.
                                                                                                                9 Z 7 0/?
     a
                               π              2}a0                           a0   }
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 EF% ! 2   " p pr = pr cos θ ^ d3 r = r2 dr sin θ dθ dϕ? A
                         µ          ¶ 3/2 Z       ∞   Z   π         ¶  µ
              1               Z                                 Zr
    c1s (p) = 2                                        r2 exp −       ×
             π               2}a0             0     0           a 0
                                                        µ
                                                            i
                                                                    ¶
                                                  × exp − pr cos θ sin θ dθ dr
                                                                               Z 2π
                                                                                    dϕ.
                                                                                                                9 Z 7 0*Z ?
                                                            }                   0
 M %! -#Q  +6- _9 Z 7 0*Z ?   2π 7 G( +%H; + - θ  !#%
  (
5T*!8- 2  ! 2 !P!#;-.)  6*') E cos θ = t 9<;`] % sin θ dθ = −dt
cos 0 = 1 cos π = −1
                                 ?A
     Z       π       µ         ¶           Z 1
                      i                          − }i prt      i} ³ −ipr/}    ipr/}
                                                                                    ´
                 exp − pr cos θ sin θ dθ =     e          dt =     e       −e         ;
         0            }                     −1                 pr
Z   ∞
                         1 ±ipr/}
                                             Z ∞              ½ µ
                                                                    Z         i
                                                                                ¶ ¾              µ
                                                                                                    Z          i
                                                                                                                   ¶−2
                                                                                                                       7
                                   U8
          2 −Zr/a0
         r e                e        dr =           r exp −              ∓ p r dr =                       ∓ p
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                                                                    a0EF}63 2 9 Z 7 0*Z? ;
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