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RECENT POSTS IN THIS TOPIC

Sergey Fedosin: on 10/4/12 at 5:23am UTC, wrote If you do not understand why your rating dropped down. As I found ratings...

Sergey Fedosin: on 10/2/12 at 7:56am UTC, wrote After studying about 250 essays in this contest, I realize now, how can I...

Hoang Hai: on 9/19/12 at 15:06pm UTC, wrote Dear Very interesting to see your essay. Perhaps all of us are convinced...

Benjamin Dribus: on 9/18/12 at 3:05am UTC, wrote Dear Tirthabir and Anupam, I really enjoyed your essay! A couple of...

Sergey Fedosin: on 9/9/12 at 10:54am UTC, wrote Dear Tirthabir and Anupam, In my opinion we can include gravity in quantum...

Anton Vrba: on 9/3/12 at 22:53pm UTC, wrote Hi Tirthabir and Anupam  Heavy reading indeed. Could you explain what...

tirthabir biswas: on 9/3/12 at 14:10pm UTC, wrote Essay Abstract In this essay we argue that a ghost-free non-local...

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FQXi FORUM
May 22, 2019

CATEGORY: Questioning the Foundations Essay Contest (2012) [back]
TOPIC: Non-Local Non-Singular Gravity and Its Consequences for Cosmology and Black Hole Physics by Tirthabir Biswas and Anupam Mazumdar [refresh]

Author tirthabir biswas wrote on Sep. 3, 2012 @ 14:10 GMT
Essay Abstract

In this essay we argue that a ghost-free non-local higher derivative extension of General Relativity may be able to render gravity asymptotically free in the deep ultra-violet, while recovering the Newtonian gravitational potential in the far infrared. Such a construction has fundamental consequences for the way we think about gravity at short distances and times -- we will show how in such models cosmological and blackhole singularities could be resolved providing us with encouraging signs for a possible consistent ultraviolet completion of gravity.

Author Bio

TIRTHABIR BISWAS • Total Number of published papers: 34 • Average Citations: 32 • Number of Publications in Physical Review Letters: 2 Anupam Mazumdar • Total Number of published papers: 104 • Average Citations: 43 • Number of Publications in Physical Review Letters: 13

Anton Lorenz Vrba wrote on Sep. 3, 2012 @ 22:53 GMT
Hi Tirthabir and Anupam

Heavy reading indeed. Could you explain what you mean by "ghost-free".

You support the common view "General Relativity (GR) has been extremely successful in explaining some of the most intriguing physical phenomena such as the perihelion shift of mercury, ..." But GR is not the only explanation, in my essay I show how the perihelion shift can be derived without resorting to GR.

In addition, could you please give comment to the paradox described section 2.3 in my essay Rethinking Geometry and Experience; it has relevance to your topic.

Regards

Anton

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Sergey G Fedosin wrote on Sep. 9, 2012 @ 10:54 GMT
Dear Tirthabir and Anupam,

In my opinion we can include gravity in quantum mechanics taking the Lorentz-invariant theory of gravitation (LITG) and changing the gravitational constant by Strong gravitational constant. So we take away some problems of general relativity in quantum gravity.

Sergey Fedosin Essay

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Member Benjamin F. Dribus wrote on Sep. 18, 2012 @ 03:05 GMT
Dear Tirthabir and Anupam,

I really enjoyed your essay! A couple of questions come to mind.

1. How does the causal structure of spacetime relate to the metric structure of spacetime in this nonlocal gravity scenario?

2. Would it be plausible, in the spirit of "whatever is not forbidden is mandatory," that if nonlocal behavior shows up in gravity, it could be expected to show up elsewhere too? Or is gravity distinguished in this regard since it has a geometric origin?

Thanks for the great read. Take care,

Ben Dribus

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Hoang cao Hai wrote on Sep. 19, 2012 @ 15:06 GMT
Dear

Very interesting to see your essay.

Perhaps all of us are convinced that: the choice of yourself is right!That of course is reasonable.

So may be we should work together to let's the consider clearly defined for the basis foundations theoretical as the most challenging with intellectual of all of us.

Why we do not try to start with a real challenge is very close and are the focus of interest of the human science: it is a matter of mass and grain Higg boson of the standard model.

Knowledge and belief reasoning of you will to express an opinion on this matter:

You have think that: the Mass is the expression of the impact force to material - so no impact force, we do not feel the Higg boson - similar to the case of no weight outside the Earth's atmosphere.

Does there need to be a particle with mass for everything have volume? If so, then why the mass of everything change when moving from the Earth to the Moon? Higg boson is lighter by the Moon's gravity is weaker than of Earth?

The LHC particle accelerator used to "Smashed" until "Ejected" Higg boson, but why only when the "Smashed" can see it,and when off then not see it ?

Can be "locked" Higg particles? so when "released" if we do not force to it by any the Force, how to know that it is "out" or not?

You are should be boldly to give a definition of weight that you think is right for us to enjoy, or oppose my opinion.

Because in the process of research, the value of "failure" or "success" is the similar with science. The purpose of a correct theory be must is without any a wrong point ?

Glad to see from you comments soon,because still have too many of the same problems.

Regards !

Hải.Caohoàng of THE INCORRECT ASSUMPTIONS AND A CORRECT THEORY

August 23, 2012 - 11:51 GMT on this essay contest.

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Sergey G Fedosin wrote on Oct. 2, 2012 @ 07:56 GMT
After studying about 250 essays in this contest, I realize now, how can I assess the level of each submitted work. Accordingly, I rated some essays, including yours.

Cood luck.

Sergey Fedosin

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Sergey G Fedosin wrote on Oct. 4, 2012 @ 05:23 GMT
If you do not understand why your rating dropped down. As I found ratings in the contest are calculated in the next way. Suppose your rating is
$R_1$
and
$N_1$
was the quantity of people which gave you ratings. Then you have
$S_1=R_1 N_1$
of points. After it anyone give you
$dS$
of points so you have
$S_2=S_1+ dS$
of points and
$N_2=N_1+1$
is the common quantity of the people which gave you ratings. At the same time you will have
$S_2=R_2 N_2$
of points. From here, if you want to be R2 > R1 there must be:
$S_2/ N_2>S_1/ N_1$
or
$(S_1+ dS) / (N_1+1) >S_1/ N_1$
or
$dS >S_1/ N_1 =R_1$
In other words if you want to increase rating of anyone you must give him more points
$dS$
then the participant`s rating
$R_1$
was at the moment you rated him. From here it is seen that in the contest are special rules for ratings. And from here there are misunderstanding of some participants what is happened with their ratings. Moreover since community ratings are hided some participants do not sure how increase ratings of others and gives them maximum 10 points. But in the case the scale from 1 to 10 of points do not work, and some essays are overestimated and some essays are drop down. In my opinion it is a bad problem with this Contest rating process. I hope the FQXI community will change the rating process.

Sergey Fedosin

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