Does gravity affect the time evolution of a QM wave function?Why do we consider the evolution (usually in time) of a wave function?Time evolution of Gaussian wave packetHow to know if a wave function is physically acceptable solution of a Schrödinger equation?Schrödinger Equation and Special RelativityWho is doing the normalization of wave function in the time evolution of wave function?Time reversal symmetry in the Schrodinger equation and evolution of wave packetHow does gravity affect the wavefunction of a particle?Why do we assume that the wave function should satisfy the Schrödinger equation?Why is a wave function time dependent?What exactly is deterministic in Schrödinger's equation?

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Does gravity affect the time evolution of a QM wave function?


Why do we consider the evolution (usually in time) of a wave function?Time evolution of Gaussian wave packetHow to know if a wave function is physically acceptable solution of a Schrödinger equation?Schrödinger Equation and Special RelativityWho is doing the normalization of wave function in the time evolution of wave function?Time reversal symmetry in the Schrodinger equation and evolution of wave packetHow does gravity affect the wavefunction of a particle?Why do we assume that the wave function should satisfy the Schrödinger equation?Why is a wave function time dependent?What exactly is deterministic in Schrödinger's equation?













4












$begingroup$


We know that the Schrödinger equation describes the time evolution of a wave function, but how does gravity affect that evolution? For example, does the wave spread slower in a strong gravitational field that in a weaker one since a clock of the system runs slower?










share|cite|improve this question











$endgroup$







  • 3




    $begingroup$
    The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
    $endgroup$
    – Rodney Dunning
    May 12 at 18:55










  • $begingroup$
    Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
    $endgroup$
    – jacob1729
    May 12 at 19:48










  • $begingroup$
    My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
    $endgroup$
    – ggcg
    May 12 at 19:55















4












$begingroup$


We know that the Schrödinger equation describes the time evolution of a wave function, but how does gravity affect that evolution? For example, does the wave spread slower in a strong gravitational field that in a weaker one since a clock of the system runs slower?










share|cite|improve this question











$endgroup$







  • 3




    $begingroup$
    The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
    $endgroup$
    – Rodney Dunning
    May 12 at 18:55










  • $begingroup$
    Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
    $endgroup$
    – jacob1729
    May 12 at 19:48










  • $begingroup$
    My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
    $endgroup$
    – ggcg
    May 12 at 19:55













4












4








4


1



$begingroup$


We know that the Schrödinger equation describes the time evolution of a wave function, but how does gravity affect that evolution? For example, does the wave spread slower in a strong gravitational field that in a weaker one since a clock of the system runs slower?










share|cite|improve this question











$endgroup$




We know that the Schrödinger equation describes the time evolution of a wave function, but how does gravity affect that evolution? For example, does the wave spread slower in a strong gravitational field that in a weaker one since a clock of the system runs slower?







quantum-mechanics newtonian-gravity wavefunction schroedinger-equation






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited May 12 at 19:14









Qmechanic

109k122061277




109k122061277










asked May 12 at 18:47









HulksterHulkster

19110




19110







  • 3




    $begingroup$
    The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
    $endgroup$
    – Rodney Dunning
    May 12 at 18:55










  • $begingroup$
    Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
    $endgroup$
    – jacob1729
    May 12 at 19:48










  • $begingroup$
    My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
    $endgroup$
    – ggcg
    May 12 at 19:55












  • 3




    $begingroup$
    The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
    $endgroup$
    – Rodney Dunning
    May 12 at 18:55










  • $begingroup$
    Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
    $endgroup$
    – jacob1729
    May 12 at 19:48










  • $begingroup$
    My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
    $endgroup$
    – ggcg
    May 12 at 19:55







3




3




$begingroup$
The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
$endgroup$
– Rodney Dunning
May 12 at 18:55




$begingroup$
The Schrödinger–Newton equation adds classical Newtonian gravity to Schrödinger's equation. You can find several resources via Google, Wikipedia, etc.
$endgroup$
– Rodney Dunning
May 12 at 18:55












$begingroup$
Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
$endgroup$
– jacob1729
May 12 at 19:48




$begingroup$
Do you specifically mean relativistic effects, or do you also want to know if the presence of a Newtonian potential $phi(x)$ affects the time evolution? (The answer is yes, since it contributes to the potential in Schrodingers equation.)
$endgroup$
– jacob1729
May 12 at 19:48












$begingroup$
My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
$endgroup$
– ggcg
May 12 at 19:55




$begingroup$
My interpretation is that the OP does not want to simply place a particle in a gravity well but learn about the effects that strong gravitational fields might have on ordinary quantum systems in slightly different frames.
$endgroup$
– ggcg
May 12 at 19:55










3 Answers
3






active

oldest

votes


















6












$begingroup$

There is no theory of quantum gravity yet, but we can say that also in quantum mechanics, gravitational time dilation is affecting mass particle quantum systems. This fact is already used in quantum physics: The measured time (of the laboratory clock) is the time after gravitational time dilation (redshifted with respect to proper time), and from this measured time may be retrieved the proper time of the quantum system if we know the gravity forces which are acting on it.






share|cite|improve this answer









$endgroup$












  • $begingroup$
    Thanks for answering.
    $endgroup$
    – Hulkster
    May 12 at 19:53










  • $begingroup$
    There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
    $endgroup$
    – AmIAStudent
    May 13 at 0:28



















2












$begingroup$

If you're talking about the non relativistic Schrodinger equation
$$
i hbar fracddt psi = - frachbar^22m nabla^2 psi + V(x) psi
$$

then a gravitaional field effects the particle by changing the external potential $V(x)$ to be the gravitational potential energy at position $x$. In this case, no, there is no time dilation present.



If you want a relativistic theory of quantum mechanics, then you have to use quantum field theory. You could couple a quantum field to a fixed background metric $g_mu nu$, and in that case yes, there would actually be gravitational time dilation. The "wave function" of a particle is not perfectly well defined in curved space time, but I would say yes, for most intents you could say that the "wave function would spread slower" higher in a gravitational field.






share|cite|improve this answer











$endgroup$












  • $begingroup$
    Do you mean that the wave function would spread slower lower in a gravitational field?
    $endgroup$
    – S. McGrew
    May 13 at 2:17










  • $begingroup$
    Yes, that's right, I mixed it up
    $endgroup$
    – user1379857
    May 13 at 2:47


















1












$begingroup$

In the context of GR gravity is space-time curvature. Thus one can discuss the effect by developing and solving the QM equations one a curved manifold, using the metric tensor for the Schwartzchild metric. There is some theoretical research connected to this. One area of research in the 80's involved this approach in the context of demonstrating that trapping particles in curves and curved surfaces generated a geometry based potential well, leading to trapping particles in the highly curved regions. I realize this is not what you are asking about, but these articles are applicable to real solid-state systems and the approach is noteworthy as it serves as a toy model for figuring out what you want to do. Another area of research, similar time period, is developing QFT on curved space-time manifolds. There are actually some text books available on this topic that might interest you. I cannot recall the author, but google the phrase "Quantum Field Theory on curved space-times" and you'll find them.






share|cite|improve this answer









$endgroup$













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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    6












    $begingroup$

    There is no theory of quantum gravity yet, but we can say that also in quantum mechanics, gravitational time dilation is affecting mass particle quantum systems. This fact is already used in quantum physics: The measured time (of the laboratory clock) is the time after gravitational time dilation (redshifted with respect to proper time), and from this measured time may be retrieved the proper time of the quantum system if we know the gravity forces which are acting on it.






    share|cite|improve this answer









    $endgroup$












    • $begingroup$
      Thanks for answering.
      $endgroup$
      – Hulkster
      May 12 at 19:53










    • $begingroup$
      There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
      $endgroup$
      – AmIAStudent
      May 13 at 0:28
















    6












    $begingroup$

    There is no theory of quantum gravity yet, but we can say that also in quantum mechanics, gravitational time dilation is affecting mass particle quantum systems. This fact is already used in quantum physics: The measured time (of the laboratory clock) is the time after gravitational time dilation (redshifted with respect to proper time), and from this measured time may be retrieved the proper time of the quantum system if we know the gravity forces which are acting on it.






    share|cite|improve this answer









    $endgroup$












    • $begingroup$
      Thanks for answering.
      $endgroup$
      – Hulkster
      May 12 at 19:53










    • $begingroup$
      There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
      $endgroup$
      – AmIAStudent
      May 13 at 0:28














    6












    6








    6





    $begingroup$

    There is no theory of quantum gravity yet, but we can say that also in quantum mechanics, gravitational time dilation is affecting mass particle quantum systems. This fact is already used in quantum physics: The measured time (of the laboratory clock) is the time after gravitational time dilation (redshifted with respect to proper time), and from this measured time may be retrieved the proper time of the quantum system if we know the gravity forces which are acting on it.






    share|cite|improve this answer









    $endgroup$



    There is no theory of quantum gravity yet, but we can say that also in quantum mechanics, gravitational time dilation is affecting mass particle quantum systems. This fact is already used in quantum physics: The measured time (of the laboratory clock) is the time after gravitational time dilation (redshifted with respect to proper time), and from this measured time may be retrieved the proper time of the quantum system if we know the gravity forces which are acting on it.







    share|cite|improve this answer












    share|cite|improve this answer



    share|cite|improve this answer










    answered May 12 at 18:59









    MoonrakerMoonraker

    2,13011023




    2,13011023











    • $begingroup$
      Thanks for answering.
      $endgroup$
      – Hulkster
      May 12 at 19:53










    • $begingroup$
      There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
      $endgroup$
      – AmIAStudent
      May 13 at 0:28

















    • $begingroup$
      Thanks for answering.
      $endgroup$
      – Hulkster
      May 12 at 19:53










    • $begingroup$
      There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
      $endgroup$
      – AmIAStudent
      May 13 at 0:28
















    $begingroup$
    Thanks for answering.
    $endgroup$
    – Hulkster
    May 12 at 19:53




    $begingroup$
    Thanks for answering.
    $endgroup$
    – Hulkster
    May 12 at 19:53












    $begingroup$
    There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
    $endgroup$
    – AmIAStudent
    May 13 at 0:28





    $begingroup$
    There are some research efforts to make portable optical lattice clocks (a type of atomic clock) that work as sensitive gravimeters. I believe researchers in Japan already demonstrated measurements of height difference in 1 cm.
    $endgroup$
    – AmIAStudent
    May 13 at 0:28












    2












    $begingroup$

    If you're talking about the non relativistic Schrodinger equation
    $$
    i hbar fracddt psi = - frachbar^22m nabla^2 psi + V(x) psi
    $$

    then a gravitaional field effects the particle by changing the external potential $V(x)$ to be the gravitational potential energy at position $x$. In this case, no, there is no time dilation present.



    If you want a relativistic theory of quantum mechanics, then you have to use quantum field theory. You could couple a quantum field to a fixed background metric $g_mu nu$, and in that case yes, there would actually be gravitational time dilation. The "wave function" of a particle is not perfectly well defined in curved space time, but I would say yes, for most intents you could say that the "wave function would spread slower" higher in a gravitational field.






    share|cite|improve this answer











    $endgroup$












    • $begingroup$
      Do you mean that the wave function would spread slower lower in a gravitational field?
      $endgroup$
      – S. McGrew
      May 13 at 2:17










    • $begingroup$
      Yes, that's right, I mixed it up
      $endgroup$
      – user1379857
      May 13 at 2:47















    2












    $begingroup$

    If you're talking about the non relativistic Schrodinger equation
    $$
    i hbar fracddt psi = - frachbar^22m nabla^2 psi + V(x) psi
    $$

    then a gravitaional field effects the particle by changing the external potential $V(x)$ to be the gravitational potential energy at position $x$. In this case, no, there is no time dilation present.



    If you want a relativistic theory of quantum mechanics, then you have to use quantum field theory. You could couple a quantum field to a fixed background metric $g_mu nu$, and in that case yes, there would actually be gravitational time dilation. The "wave function" of a particle is not perfectly well defined in curved space time, but I would say yes, for most intents you could say that the "wave function would spread slower" higher in a gravitational field.






    share|cite|improve this answer











    $endgroup$












    • $begingroup$
      Do you mean that the wave function would spread slower lower in a gravitational field?
      $endgroup$
      – S. McGrew
      May 13 at 2:17










    • $begingroup$
      Yes, that's right, I mixed it up
      $endgroup$
      – user1379857
      May 13 at 2:47













    2












    2








    2





    $begingroup$

    If you're talking about the non relativistic Schrodinger equation
    $$
    i hbar fracddt psi = - frachbar^22m nabla^2 psi + V(x) psi
    $$

    then a gravitaional field effects the particle by changing the external potential $V(x)$ to be the gravitational potential energy at position $x$. In this case, no, there is no time dilation present.



    If you want a relativistic theory of quantum mechanics, then you have to use quantum field theory. You could couple a quantum field to a fixed background metric $g_mu nu$, and in that case yes, there would actually be gravitational time dilation. The "wave function" of a particle is not perfectly well defined in curved space time, but I would say yes, for most intents you could say that the "wave function would spread slower" higher in a gravitational field.






    share|cite|improve this answer











    $endgroup$



    If you're talking about the non relativistic Schrodinger equation
    $$
    i hbar fracddt psi = - frachbar^22m nabla^2 psi + V(x) psi
    $$

    then a gravitaional field effects the particle by changing the external potential $V(x)$ to be the gravitational potential energy at position $x$. In this case, no, there is no time dilation present.



    If you want a relativistic theory of quantum mechanics, then you have to use quantum field theory. You could couple a quantum field to a fixed background metric $g_mu nu$, and in that case yes, there would actually be gravitational time dilation. The "wave function" of a particle is not perfectly well defined in curved space time, but I would say yes, for most intents you could say that the "wave function would spread slower" higher in a gravitational field.







    share|cite|improve this answer














    share|cite|improve this answer



    share|cite|improve this answer








    edited May 13 at 0:51

























    answered May 12 at 19:55









    user1379857user1379857

    2,549830




    2,549830











    • $begingroup$
      Do you mean that the wave function would spread slower lower in a gravitational field?
      $endgroup$
      – S. McGrew
      May 13 at 2:17










    • $begingroup$
      Yes, that's right, I mixed it up
      $endgroup$
      – user1379857
      May 13 at 2:47
















    • $begingroup$
      Do you mean that the wave function would spread slower lower in a gravitational field?
      $endgroup$
      – S. McGrew
      May 13 at 2:17










    • $begingroup$
      Yes, that's right, I mixed it up
      $endgroup$
      – user1379857
      May 13 at 2:47















    $begingroup$
    Do you mean that the wave function would spread slower lower in a gravitational field?
    $endgroup$
    – S. McGrew
    May 13 at 2:17




    $begingroup$
    Do you mean that the wave function would spread slower lower in a gravitational field?
    $endgroup$
    – S. McGrew
    May 13 at 2:17












    $begingroup$
    Yes, that's right, I mixed it up
    $endgroup$
    – user1379857
    May 13 at 2:47




    $begingroup$
    Yes, that's right, I mixed it up
    $endgroup$
    – user1379857
    May 13 at 2:47











    1












    $begingroup$

    In the context of GR gravity is space-time curvature. Thus one can discuss the effect by developing and solving the QM equations one a curved manifold, using the metric tensor for the Schwartzchild metric. There is some theoretical research connected to this. One area of research in the 80's involved this approach in the context of demonstrating that trapping particles in curves and curved surfaces generated a geometry based potential well, leading to trapping particles in the highly curved regions. I realize this is not what you are asking about, but these articles are applicable to real solid-state systems and the approach is noteworthy as it serves as a toy model for figuring out what you want to do. Another area of research, similar time period, is developing QFT on curved space-time manifolds. There are actually some text books available on this topic that might interest you. I cannot recall the author, but google the phrase "Quantum Field Theory on curved space-times" and you'll find them.






    share|cite|improve this answer









    $endgroup$

















      1












      $begingroup$

      In the context of GR gravity is space-time curvature. Thus one can discuss the effect by developing and solving the QM equations one a curved manifold, using the metric tensor for the Schwartzchild metric. There is some theoretical research connected to this. One area of research in the 80's involved this approach in the context of demonstrating that trapping particles in curves and curved surfaces generated a geometry based potential well, leading to trapping particles in the highly curved regions. I realize this is not what you are asking about, but these articles are applicable to real solid-state systems and the approach is noteworthy as it serves as a toy model for figuring out what you want to do. Another area of research, similar time period, is developing QFT on curved space-time manifolds. There are actually some text books available on this topic that might interest you. I cannot recall the author, but google the phrase "Quantum Field Theory on curved space-times" and you'll find them.






      share|cite|improve this answer









      $endgroup$















        1












        1








        1





        $begingroup$

        In the context of GR gravity is space-time curvature. Thus one can discuss the effect by developing and solving the QM equations one a curved manifold, using the metric tensor for the Schwartzchild metric. There is some theoretical research connected to this. One area of research in the 80's involved this approach in the context of demonstrating that trapping particles in curves and curved surfaces generated a geometry based potential well, leading to trapping particles in the highly curved regions. I realize this is not what you are asking about, but these articles are applicable to real solid-state systems and the approach is noteworthy as it serves as a toy model for figuring out what you want to do. Another area of research, similar time period, is developing QFT on curved space-time manifolds. There are actually some text books available on this topic that might interest you. I cannot recall the author, but google the phrase "Quantum Field Theory on curved space-times" and you'll find them.






        share|cite|improve this answer









        $endgroup$



        In the context of GR gravity is space-time curvature. Thus one can discuss the effect by developing and solving the QM equations one a curved manifold, using the metric tensor for the Schwartzchild metric. There is some theoretical research connected to this. One area of research in the 80's involved this approach in the context of demonstrating that trapping particles in curves and curved surfaces generated a geometry based potential well, leading to trapping particles in the highly curved regions. I realize this is not what you are asking about, but these articles are applicable to real solid-state systems and the approach is noteworthy as it serves as a toy model for figuring out what you want to do. Another area of research, similar time period, is developing QFT on curved space-time manifolds. There are actually some text books available on this topic that might interest you. I cannot recall the author, but google the phrase "Quantum Field Theory on curved space-times" and you'll find them.







        share|cite|improve this answer












        share|cite|improve this answer



        share|cite|improve this answer










        answered May 12 at 19:53









        ggcgggcg

        1,822214




        1,822214



























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