315 reputation
112
bio website cmi.ac.in/~debangshu
location Chennai, India
age 24
visits member for 3 years, 3 months
seen 2 days ago

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


Feb
4
awarded  Commentator
Feb
3
comment Difficulty in visualizing more than three spatial dimension
I still don't understand the question...
Jan
31
revised Equation $H(q,p)=E$ is the equation of motion or energy-conservation law?
latex editing
Jan
31
suggested suggested edit on Equation $H(q,p)=E$ is the equation of motion or energy-conservation law?
Jan
31
asked How do I show that there exists variational/action principle for a given classical system?
Jan
31
awarded  Editor
Jan
31
revised Equation $H(q,p)=E$ is the equation of motion or energy-conservation law?
added 9 characters in body
Jan
31
answered Equation $H(q,p)=E$ is the equation of motion or energy-conservation law?
Jan
31
comment What if the strong force gave up?
Is this a serious question?
Jan
30
comment How to calculate the force acting on a magnet placed in a magnetic field?
I would say, this is kind of a tedious algebra which has been worked out in details in Julian Schwinger's book, Classical Electrodynamics Chapter 4-Macroscopic Electrodynamics Section 4.2. Here, first Schwinger has discussed the force on an atom due to an external electromagnetic field. Then, to find the force on a finite volume element he has integrated that force over the total volume with $n(\mathbf{r})$ as the number density of the molecules. You also need to define quantities like magnetic/electric dipole moment for the macroscopic body
Jan
30
answered How to calculate the electric field at a point in space
Jan
29
answered About constructing potential energy functions
Jan
29
comment How to calculate the electric field at a point in space
Did you mean that you have to find the field at the origin?
May
3
comment Which Mechanics book is the best for beginner in math major?
I never knew Spivak wrote on Class Mech!!! :-)
Apr
27
comment What exactly is meant by the “Gaussianity” of CMBR?
I saw Liddle and Lyth and the way dbrane defined Gaussianity is quite correct (at least according to Liddle and Lyth) however, I have issues regarding dbranes comment "Fourier modes being uncorrelated is precisely equivalent to statistical homogeneity & isotropy, and is completely independent of Gaussianity." Komatsu's review article clearly says the non-correlated Fourier mode is a result of Gaussianity!
Apr
27
answered Which Mechanics book is the best for beginner in math major?
Apr
25
comment What exactly is meant by the “Gaussianity” of CMBR?
Thanks a lot again :-)
Apr
25
comment What exactly is meant by the “Gaussianity” of CMBR?
Thanks a lot! I still do not get how we are going to connect the experimental observation with the data. In experiment, we measure $\langle T(\hat{n})T(\hat{n^{\prime}})\rangle$ while theoretically, we are calculating $\langle \delta \phi_{k} \delta \phi_{k'}\rangle$. How should we relate these?
Apr
25
awarded  Scholar
Apr
25
accepted What exactly is meant by the “Gaussianity” of CMBR?