Debangshu

165 reputation

bio	website	cmi.ac.in/~debangshu
	location	Chennai, India
	age	23
visits	member for	2 years, 1 month
	seen	yesterday
stats	profile views	77

Final year Bachelors student of Theoretical Physics at Chennai Mathematical Institute. Interested in Cosmology and applications of Field Theory to Condensed Matter Systems.

	165 reputation	bio	website	cmi.ac.in/~debangshu	visits	member for	2 years, 1 month
11 badges		location	Chennai, India		seen	yesterday

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May 17	comment	How do we simulate Nuclear explosion? Please modify your question and ask what aspect of physics would you like to know. What is the model you are working with? What attempts have been made etc.?
May 17	comment	How do we simulate Nuclear explosion? This is PHYSICS stack exchange and your question is not appropriate for such a forum.
May 13	accepted	Parametrization of $U(N)$ non-linear sigma model
May 13	asked	Parametrization of $U(N)$ non-linear sigma model
May 11	comment	Construction of the supergravity side explicitly in gauge/gravity dualities Also, although I have not mentioned it explicitly, I guess I am also assuming a very big result though I am not sure if it is true: Every CFT will have an AdS dual theory. If this is false, then obviously my question itself becomes irrelevant.
May 11	comment	Construction of the supergravity side explicitly in gauge/gravity dualities Actually I should have mentioned in the post itself. My question was also motivated by the paper (arxiv.org/pdf/1011.2986.pdf) of Gopakumar & Gaberdiel. They have shown the duality of two theories again. This time, the theories are a 2d $\mathcal{W}_{N}$ minimal model with large $N$ ('t Hooft limit) and a higher spin theory in $AdS_3$. What I'm asking is this. If I would have started with the 2d $\mathcal{W}_{N}$ minimal model then, can the fact that it is dual to a higher spin theory in $AdS_3$ automatically emerge out from my calculations?
May 11	revised	Construction of the supergravity side explicitly in gauge/gravity dualities Formula corrected, Added a section on weak-strong coupling duality
May 11	awarded	Citizen Patrol
May 11	asked	Construction of the supergravity side explicitly in gauge/gravity dualities
Apr 1	revised	S-Wave for minimally coupled scalar field Problem statement has been expanded and further details were added.
Apr 1	asked	S-Wave for minimally coupled scalar field
Mar 26	comment	Vector Addition — Direction $F_3$ will be in a direction opposite to $F_1$ ONLY IF $F_2$ is in SAME DIRECTION as $F_1$ or else in general NO.
Mar 26	comment	Vector Addition — Direction if $F_1 = F_2$, it means $F_3 = 2F_1$. So, equation (2) is $F_1 -F_3 = F_1 - 2F_1 = -F_1$. Now, since $F_1 = F_2$, we can also write $-F_1 = -F_2$ which proves the second statement: $F_1-F_3 = -F_2$ and hence there is no contradiction between (2) and (3).
Mar 26	comment	Vector Addition — Direction Yes, they may be in the same direction but, nothing can be said about the magnitude and there is no way you can write Equation (3) from Equation (1) even if they are in the same direction. As you yourself pointed out, vector equality will hold if both magnitude and direction are the same.
Mar 26	comment	Vector Addition — Direction Your first assumption is wrong. $F_1 + F_2 - F_3=0$ never implies $F_1$ and $F_2$ are in the same direction. You can definitely add forces in different directions and the fact that their sum is zero means you can construct a triangle with these vectors (adjust the direction accordingly). Check this link: en.wikipedia.org/wiki/Euclidean_vector#Addition_and_subtraction
Feb 22	accepted	Poincare Patch covers half of the hyperboloid of AdS
Dec 30	awarded	Promoter
Dec 28	asked	How does one derive the 2 halo term in two-point correlation function
Dec 20	awarded	Nice Question
Nov 28	comment	is it possible to flow current in open circuit? Simply speaking no. For an open circuit, the end points will be at same potential. You need a potential difference for current to flow. Also, please don't put smileys in question.