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Momentum operator
ID: momentum-operator
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Momentum operator
by
Wikipedia Bot
0
1970-01-01
0
Momentum operator
by
Ciro Santilli
37
Updated
2025-05-13
+
Created
1970-01-01
One
dimension
in
position representation
:
p
^
=
−
i
ℏ
∂
x
∂
(1)
In three
dimensions
In
position representation
,
we
define
it by using the
gradient
, and so
we
see that
p
^
=
−
i
ℏ
∂
x
∂
(2)
Video 1.
Position
and
Momentum
from Wavefunctions by
Faculty of Khan
(2018)
Source
. Proves in detail why the
momentum operator
is
∂
x
∂
. The starting point is determining the
time
derivative
of the
expectation value
of the
position operator
.
Total
articles
:
2
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