, (. 3). ,
. . , , . (> 109).
19361937 . .. .. . .
. r , j z (.3). ,
= (9)
UA () , ra , r r .
, ,
F = .
,
F = e [ v, B ],
B . , , , (r, j), z .
(.4). . . B , . , B>B .
.4, :
vr =
w = .
ω B z .
(r, j) : :
(10)
L = J ω, (11)
J=mr2 z. ,
M =[ rF ]. (12)
F (.5):
F = F + F = e [ vB ] e E. (13)
(13) (12):
M = e [ r [ vB ]] e [ rE ].
|
|
[ rE ] =0, r E .
[ a [ bc ]] = b (ac) c (ab):
M = e [ r [ B ]] = e (rB)+ e B (r ). (14)
(rB) = 0, r B . (11) (14) (10)
(mr2 ω) = e B (r ).
,
(r ) = = ,
:
(mr2 ω) =
z:
(mr2w ) = 0.
, t:
mr2w = c. (15)
: r=r w= 0:
c = .
(15) ,
w = . (16)
v . U (. (1)):
v = (17)
( , ≈1000 kT =1,38∙10-23∙-1∙1000= =1,38∙10-20 ≈ 0,1).
B.
v = r = rawa. (18)
(16) (17) , :
2 Ua = ( B )2.
:
= . (19)
(19) , Ua B (, , B Ua), :
. (20)
, ,
.6 . B<B , Ia B. B>B , .
, . , , , . , , . - , Ia = Ia(B)
( .6) , .