740
A F Terzis
mM/(M
+
m)
, called reduced mass. In addition, in the relativistic version of Bohr’s atom,
the equations of motion are very different. The reason is that in the case of both charges
moving, apart from the electric fields, magnetic fields are also introduced. The equations
become [
12
]
d
d
t
m
v
e
1
−
v
2
e
/c
2
= −
e(
E
p
+
v
e
×
B
p
)
(7)
d
d
t
⎛
⎝
M
v
p
1
−
v
2
p
/c
2
⎞
⎠
=
e(
E
e
+
v
p
×
B
e
),
where
E
p(e)
and
B
p(e)
are the electric and magnetic fields created by the proton (electron).
The expressions for the electric and magnetic fields are quite complicated since retardation
effects, originating from the finite speed of propagation of any interaction in nature, become
important at high velocities [
13
]. The right-hand terms are not of the form of action and
reaction as in classical mechanics. The absence of opposite forces on the right-hand side of
the equations of motion is another reason why the reduced mass method cannot be applied in
the relativistic version of Bohr’s model.
A first attempt to study this problem appeared in [
14
], with a much larger nucleur mass
and few terms in the expansion of the complicated expression for the forces.
Another attempt to study the relativistic corrections was presented in [
15
], but results and
predictions for the H-like atoms were not emphasized.
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