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seen Jul 2 at 17:01

Physics graduate, web developer. Graphic design enthusiast :D


Dec
28
comment Warped AdS geometry
The firs link is forbidden, but I think that the TASI lectures will do. I need a definition what is warped AdS (AdS_3 to be exact), a bit about the symmetries (altho that follows from the symmetries of the AdS_3). The general info.
Dec
28
accepted Warped AdS geometry
Dec
27
asked Warped AdS geometry
Dec
16
comment What is a Nyquist edge?
Google? en.wikipedia.org/wiki/Nyquist_filter
Dec
14
comment Holographic principle and holograms
Ok, so technically I'm not wrong XD
Dec
14
comment Holographic principle and holograms
What interests me is: is it ok to say that we are living in a hologram (Susskind likes to say so if I recall correctly)? In my opinion these two are very different things (holographic principle and holograms). But people think they are somehow connected. Or am I wrong and they really are connected?
Dec
14
asked Holographic principle and holograms
Nov
26
comment Modular invariance of CFT
I'll accept this even tho I'm not really sure how to explain this in layman terms :\
Nov
26
accepted Modular invariance of CFT
Nov
25
comment Modular invariance of CFT
How could I phrase that in layman terms? XD Is it possible to explaine this to someone who's not directly involved in physics? Or not in this area?
Nov
25
asked Modular invariance of CFT
Nov
23
comment Question about exterior derivatives
I need to add it, I got it after looking a bit :D Thanks :)
Nov
23
accepted Question about exterior derivatives
Nov
23
revised Question about exterior derivatives
added 452 characters in body
Nov
22
comment Question about exterior derivatives
I will add an edit in my question, since equations won't end up good in comment :\
Nov
22
asked Question about exterior derivatives
Nov
19
comment What is the definition of integrability in the context of surface charges?
Oh, also have you read arxiv.org/pdf/hep-th/0111246v2.pdf ? Look at the definition in (6.44), there the integration is given for AdS${}_3$. Hope this helps :)
Nov
19
comment What is the definition of integrability in the context of surface charges?
Because if you have r in it, after putting $r\to\infty$ the expression will clearly diverge. That's mainly what I got from Kerr/CFT correspondence. (2/2)
Nov
19
comment What is the definition of integrability in the context of surface charges?
I know it's late, but from what I've understood while reading on the topic of asymptotic symmetry, when you calculate surface charges, they are the surface integrals that involve the 'superpotential' given in arxiv.org/abs/hep--th/0111246 (equation 1.6 and onward). The expression contains usually a covariant derivative, a vector and some boundary terms (boundary conditions). Integrability just means that your integral won't diverge. Usually you are looking at the asymptotics (say $r\to\infty$), and you want that your integral doesn't have r dependance after the calculation (1/2)
Nov
17
revised Asymptotic symmetry algebra
added additional answer