Einstein said that energy (or mass) is equivalent to the curvature of the spacetime, based on the Einstein field equations. But I have some questions: What is the effect of energy on the spacetime itself? Are they independent of each other? Does the existence of energy lead to create the spacetime and vice versa in the evolution of the Universe known from the Hot Big Bang model? Is there another physical concept to relate them to each other?
The effect of energy on the geometry of spacetime is described by Einstein's equations, where the RHS is the energy-momentum tensor of matter. So, no, energy and spacetime are not independent. And, yes, the energy-momentum tensor of matter is a source term. And these equations are used all the time to describe the evolution of the Universe. The physical concept that relates the energy-momentum tensor of matter to the spacetime geometry is known as the equivalence principle, according to which matter probes spacetime and spacrtime affects matter only through the energy-momentum tensor.
Dear Milad,
As per my concepts space time is also a form of energy like mass
You may please visit my papers at my research gate profile.
Dear Milad,
According to Einstein's general theory of relativity, space time is warped by the presence of matter or energy. However, it would take a huge amount of energy to produce any significant curvature of space time. Mass equals energy, so energy also warps space time. Einstein said that everything in the universe is energy. "the mass-energy of the Voyager 1 space probe" may not sound like much, if you convert the 722 kilogram Voyager mass into raw energy (using Einstein's famous mass-energy equivalence equation: E=mc2), White's warp drive would require 6.5×1019 Joules (65 exajoules) to create a warp bubble.
Huge amounts of negative energy accumulated within background space leads to the generation of elementary space-time unit, which carries non-uniform energy conservation in the form of electromagnetic energy. Translation of background uniform energy, accumulated within minimum space, to the non-uniform energy conservation phase generates a non-baryonic heavy particle, which is the precursor of the ingredients of elementary space-time frame of matter.
The flow of time is the flow of energy is a simple statement but one that places time on the same footing with space. It takes time to distinguish spatial loci from another, i.e. to move energy from one distinct density to another. The evolving space–time is energy–momentum transfer process.
Ashish
As per my arguments ,Energy can not warp space time. That is the main difference between energy and mass. Space time will be warped by mass not by energy. By this nature mass possesses inertia. Inertia is the main difference between mass and energy. Off course, the answer will be in quantum mechanics not in General Relativity.
Milad Hajebrahimi , @Sydney Ernest Grimm., @Stam Nicolis., @Siva Prasad Kodukula., and @Ashish Thakur:
I would like to congratulate you because your question and introductory statements have already generated the very best answers I have seen in a long time on other discussion threads on similar topics. I am very much interested in the questions you are raising. I have much more to learn than I am currently able to contribute to the topic. Best regards, and thanks again for posting your discussion question.
With my best wishes.
In my opinion,electromagnetic field can be expressed in terms of space time structure since it is a fundamental force. But we can not imagine the same space time with combination of electric space time and magnetic space time since magnetic field is not fundamental field. The fluctuation in the space time of electric field creates magnetic field.Nothing is in vain. Every thing should be explained by fundamentals . For me it is the aim and purpose of physics.
Dear Sydney,
I want to express my opinion -
1. Space time as a model of gravity alone may not be relavent. Einstein believed it during his life time. He was not ready to look in to QM(very strong belief that QM is erronious). But at the quantum level all the fundamental forces are formed by space time.
2. 'Concentration of energy by electrical field is gravity' by GR. may not be relevent.
3.'"I am afraid that GR is about dark matter."Already I have posted a proposal that Dark energy is catastrophical effect of GR.(That paper is available in myRG profile.)For dark matter is also similar calculation with in quantum level.It comes around 26.59%of total energy density.
This is not relavent forum for discussion. With due respect to your opinions, Let us wait and see for the future research in QM and GR.
With Regards,
SPKodukula.
I am very thankful to those who participated in this discussion.
I realized my mistake in the content of the questions raised in this discussion.
The questions I asked are not scientifically correct, as mentioned in one of the answers.
Finally, in what follows, I will correct questions and provide some answers to them:
Gravity is equivalent to the curvature of spacetime, not matter or energy!
The matter or energy forms the geometry (curvature), which is the same as gravity. According to John Wheeler: "Matter forms geometry (spacetime) and the geometry tell matter how to move (moving along geodesics)."
The effect of energy (equivalent to matter) is to create spacetime and curvature in spacetime. It is natural that matter (energy) and spacetime are not independent of each other: if there is no matter (energy), neither will geometry (spacetime). The existence of spacetime is due to the existence of matter (energy).
Regards
Milad
dear friend
energy or mass has perfect relation with spacetime. energy proportional to inverce of spacetime according to me i do research in that e=1/d3
where e is energy and d is three special cordinates. when energy increase spacetime decreased. vice varsa energy or mass decrease spacetime value increase. example is blackhole in that very high mass reside in very small space.
if you join me with research you are welcome.
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