Do theoretical physics suggest that gravity is the exchange of gravitons or deformation/bending of...
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Do theoretical physics suggest that gravity is the exchange of gravitons or deformation/bending of spacetime?
Does quantum gravity entail that spacetime is emergent?Gravity and spacetime bendingWhat´s the physical foundation of the assumption that the curvature of spacetime can be quantised?Is the spacetime for gravity described with gravitons flat?Is the deformation of spacetime, elastic deformation or plastic deformation?Is gravity just the result of bending the space?Have the chances of finding gravitons changed now that we’ve detected gravitational waves?If gravity arises from the curvature of spacetime, why is there a need for gravitons?Does gravity CAUSE the bending of spacetime, or IS gravity the bending of spacetime?Does the existence of graviton contradict gravity being spacetime curvature?
$begingroup$
Throughout life I have always been taught that gravity is simple a force, however now I struggle to see that being strictly true. Hence I wanted to ask what modern theoretical physics suggests about this; where it is the exchange of the theoretical particle graviton or rather a 'bend' is space due to the presence of matter? I don't need a concrete answer, but rather which side the modern physics and research is leaning to.
gravity spacetime curvature quantum-gravity carrier-particles
edited 1 hour ago
Qmechanic♦
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
$begingroup$
Throughout life I have always been taught that gravity is simple a force, however now I struggle to see that being strictly true. Hence I wanted to ask what modern theoretical physics suggests about this; where it is the exchange of the theoretical particle graviton or rather a 'bend' is space due to the presence of matter? I don't need a concrete answer, but rather which side the modern physics and research is leaning to.
gravity spacetime curvature quantum-gravity carrier-particles
edited 1 hour ago
Qmechanic♦
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago
add a comment |
$begingroup$
Throughout life I have always been taught that gravity is simple a force, however now I struggle to see that being strictly true. Hence I wanted to ask what modern theoretical physics suggests about this; where it is the exchange of the theoretical particle graviton or rather a 'bend' is space due to the presence of matter? I don't need a concrete answer, but rather which side the modern physics and research is leaning to.
gravity spacetime curvature quantum-gravity carrier-particles
edited 1 hour ago
Qmechanic♦
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Throughout life I have always been taught that gravity is simple a force, however now I struggle to see that being strictly true. Hence I wanted to ask what modern theoretical physics suggests about this; where it is the exchange of the theoretical particle graviton or rather a 'bend' is space due to the presence of matter? I don't need a concrete answer, but rather which side the modern physics and research is leaning to.
gravity spacetime curvature quantum-gravity carrier-particles
gravity spacetime curvature quantum-gravity carrier-particles
edited 1 hour ago
Qmechanic♦
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
Qmechanic♦
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 1 hour ago
Qmechanic♦
105k121901203
edited 1 hour ago
Qmechanic♦
105k121901203
edited 1 hour ago
Qmechanic♦
105k121901203
105k121901203
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
asked 3 hours ago
Steve_just_steveSteve_just_steve
285
285
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Steve_just_steve is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago
add a comment |
$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago
$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago
add a comment |
1 Answer
1
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$begingroup$
Both.
General relativity describes gravity as curvature of spacetime, and general relativity is an extremely successful theory. Its correct predictions about gravitational waves, as verified directly by LIGO, are especially severe tests.
Gravity also has to be quantum-mechanical, because all the other forces of nature are quantum-mechanical, and when you try to couple a classical (i.e., non-quantum-mechanical) system to a quantum-mechanical one, it doesn't work. See Carlip and Adelman for a discussion of this.
So we know that gravity has to be described both as curvature of spacetime and as the exchange of gravitons. That's not inherently a contradiction. We do similar things with the other forces. We just haven't been able to make it work for gravity.
Carlip, "Is Quantum Gravity Necessary?," http://arxiv.org/abs/0803.3456
Adelman, "The Necessity of Quantizing Gravity," http://arxiv.org/abs/1510.07195
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
$endgroup$
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
add a comment |
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$begingroup$
Both.
General relativity describes gravity as curvature of spacetime, and general relativity is an extremely successful theory. Its correct predictions about gravitational waves, as verified directly by LIGO, are especially severe tests.
Gravity also has to be quantum-mechanical, because all the other forces of nature are quantum-mechanical, and when you try to couple a classical (i.e., non-quantum-mechanical) system to a quantum-mechanical one, it doesn't work. See Carlip and Adelman for a discussion of this.
So we know that gravity has to be described both as curvature of spacetime and as the exchange of gravitons. That's not inherently a contradiction. We do similar things with the other forces. We just haven't been able to make it work for gravity.
Carlip, "Is Quantum Gravity Necessary?," http://arxiv.org/abs/0803.3456
Adelman, "The Necessity of Quantizing Gravity," http://arxiv.org/abs/1510.07195
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
$endgroup$
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
add a comment |
$begingroup$
Both.
General relativity describes gravity as curvature of spacetime, and general relativity is an extremely successful theory. Its correct predictions about gravitational waves, as verified directly by LIGO, are especially severe tests.
Gravity also has to be quantum-mechanical, because all the other forces of nature are quantum-mechanical, and when you try to couple a classical (i.e., non-quantum-mechanical) system to a quantum-mechanical one, it doesn't work. See Carlip and Adelman for a discussion of this.
So we know that gravity has to be described both as curvature of spacetime and as the exchange of gravitons. That's not inherently a contradiction. We do similar things with the other forces. We just haven't been able to make it work for gravity.
Carlip, "Is Quantum Gravity Necessary?," http://arxiv.org/abs/0803.3456
Adelman, "The Necessity of Quantizing Gravity," http://arxiv.org/abs/1510.07195
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
$endgroup$
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
add a comment |
$begingroup$
Both.
General relativity describes gravity as curvature of spacetime, and general relativity is an extremely successful theory. Its correct predictions about gravitational waves, as verified directly by LIGO, are especially severe tests.
Gravity also has to be quantum-mechanical, because all the other forces of nature are quantum-mechanical, and when you try to couple a classical (i.e., non-quantum-mechanical) system to a quantum-mechanical one, it doesn't work. See Carlip and Adelman for a discussion of this.
So we know that gravity has to be described both as curvature of spacetime and as the exchange of gravitons. That's not inherently a contradiction. We do similar things with the other forces. We just haven't been able to make it work for gravity.
Carlip, "Is Quantum Gravity Necessary?," http://arxiv.org/abs/0803.3456
Adelman, "The Necessity of Quantizing Gravity," http://arxiv.org/abs/1510.07195
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
$endgroup$
Both.
General relativity describes gravity as curvature of spacetime, and general relativity is an extremely successful theory. Its correct predictions about gravitational waves, as verified directly by LIGO, are especially severe tests.
Gravity also has to be quantum-mechanical, because all the other forces of nature are quantum-mechanical, and when you try to couple a classical (i.e., non-quantum-mechanical) system to a quantum-mechanical one, it doesn't work. See Carlip and Adelman for a discussion of this.
So we know that gravity has to be described both as curvature of spacetime and as the exchange of gravitons. That's not inherently a contradiction. We do similar things with the other forces. We just haven't been able to make it work for gravity.
Carlip, "Is Quantum Gravity Necessary?," http://arxiv.org/abs/0803.3456
Adelman, "The Necessity of Quantizing Gravity," http://arxiv.org/abs/1510.07195
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
answered 1 hour ago
Ben CrowellBen Crowell
51.5k6156302
51.5k6156302
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
add a comment |
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
$begingroup$
Hey man, the links you sent are very useful and this really helped clear up certain misconceptions I had about gravity, so it can and in fact is very likely to be both. Thank you very much :-) !!
$endgroup$
– Steve_just_steve
23 mins ago
add a comment |
Steve_just_steve is a new contributor. Be nice, and check out our Code of Conduct.
Steve_just_steve is a new contributor. Be nice, and check out our Code of Conduct.
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$begingroup$
I think that whichever model suits your need the best should get the job done. But then again I am not a Physicist.
$endgroup$
– harshit54
3 hours ago
$begingroup$
Well, even if you are not a physicist this is still a good point, so thank you.
$endgroup$
– Steve_just_steve
3 hours ago