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Does an atom recoil when photon radiate?
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Does an atom recoil when photon radiate?
Do electrons collapse into nucleus, if electrons in the atom are constantly excited?Do we really not know why atoms 'decide' to produce a photon?Energy conservation if photon absorbed below resonanceHow does one account for the momentum of an absorbed photon?Momentum and acceleration of an atom after emitting of a photon?Do electrons in an atom gain kinetic energy when a photon hits it?Is an atom's photon recoil on absorption affected by a beam splitter?What does a photon emitted by an atom “look” like?
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Consider an atom in the excited state radiating a photon and goes to the lower energy state. But photons have a certain angular momentum, the momentum itself is not defined. In this case, will there be a recoil of the atom due to photon emitted?
electromagnetic-radiation momentum conservation-laws atoms
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
$endgroup$
add a comment |
$begingroup$
Consider an atom in the excited state radiating a photon and goes to the lower energy state. But photons have a certain angular momentum, the momentum itself is not defined. In this case, will there be a recoil of the atom due to photon emitted?
electromagnetic-radiation momentum conservation-laws atoms
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
$endgroup$
$begingroup$
@aRockStr If you have an answer, please post it below. Thank you.
$endgroup$
– Robert Cartaino♦
8 hours ago
$begingroup$
Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago
add a comment |
$begingroup$
Consider an atom in the excited state radiating a photon and goes to the lower energy state. But photons have a certain angular momentum, the momentum itself is not defined. In this case, will there be a recoil of the atom due to photon emitted?
electromagnetic-radiation momentum conservation-laws atoms
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
$endgroup$
Consider an atom in the excited state radiating a photon and goes to the lower energy state. But photons have a certain angular momentum, the momentum itself is not defined. In this case, will there be a recoil of the atom due to photon emitted?
electromagnetic-radiation momentum conservation-laws atoms
electromagnetic-radiation momentum conservation-laws atoms
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
edited 7 hours ago
Qmechanic♦
113k13 gold badges220 silver badges1337 bronze badges
113k13 gold badges220 silver badges1337 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
asked 9 hours ago
SergioSergio
9809 silver badges24 bronze badges
9809 silver badges24 bronze badges
$begingroup$
@aRockStr If you have an answer, please post it below. Thank you.
$endgroup$
– Robert Cartaino♦
8 hours ago
$begingroup$
Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago
add a comment |
$begingroup$
@aRockStr If you have an answer, please post it below. Thank you.
$endgroup$
– Robert Cartaino♦
8 hours ago
$begingroup$
Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago
$begingroup$
@aRockStr If you have an answer, please post it below. Thank you.
$endgroup$
– Robert Cartaino♦
8 hours ago
$begingroup$
@aRockStr If you have an answer, please post it below. Thank you.
$endgroup$
– Robert Cartaino♦
8 hours ago
$begingroup$
Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago
$begingroup$
Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago
add a comment |
1 Answer
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The momentum of a photon is not only defined, but is defined very well, as $$p=frac Ec =frac hlambda$$
Therefore, atoms recoil when emitting photons.
The opposite phenomena, an atom recoiling during photon absorption, is used by laser cooling near $0 mathrmK$.
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
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1 Answer
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1 Answer
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$begingroup$
The momentum of a photon is not only defined, but is defined very well, as $$p=frac Ec =frac hlambda$$
Therefore, atoms recoil when emitting photons.
The opposite phenomena, an atom recoiling during photon absorption, is used by laser cooling near $0 mathrmK$.
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
$endgroup$
add a comment |
$begingroup$
The momentum of a photon is not only defined, but is defined very well, as $$p=frac Ec =frac hlambda$$
Therefore, atoms recoil when emitting photons.
The opposite phenomena, an atom recoiling during photon absorption, is used by laser cooling near $0 mathrmK$.
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
$endgroup$
add a comment |
$begingroup$
The momentum of a photon is not only defined, but is defined very well, as $$p=frac Ec =frac hlambda$$
Therefore, atoms recoil when emitting photons.
The opposite phenomena, an atom recoiling during photon absorption, is used by laser cooling near $0 mathrmK$.
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
$endgroup$
The momentum of a photon is not only defined, but is defined very well, as $$p=frac Ec =frac hlambda$$
Therefore, atoms recoil when emitting photons.
The opposite phenomena, an atom recoiling during photon absorption, is used by laser cooling near $0 mathrmK$.
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
edited 7 hours ago
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
answered 8 hours ago
PoutnikPoutnik
1,0255 silver badges10 bronze badges
1,0255 silver badges10 bronze badges
add a comment |
add a comment |
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@aRockStr If you have an answer, please post it below. Thank you.
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– Robert Cartaino♦
8 hours ago
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Interesting reading on these lines: Mossbauer effect. Sometimes it is a larger system that recoils.
$endgroup$
– dmckee♦
51 mins ago