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I am an engineer learning physics in my spare time. My current focus is quantum field theory and the Standard Model.


Feb
22
accepted Is it possible to disprove water memory with an entropy argument?
Feb
22
asked Is it possible to disprove water memory with an entropy argument?
Jan
24
awarded  Yearling
Jan
22
accepted Thermodynamics of evaporation
Jan
15
awarded  Nice Question
Dec
20
comment How do creation operators change with time in an interacting theory?
That was a mistake on my part, I thought it was automatically awarded.
Dec
19
accepted How do creation operators change with time in an interacting theory?
Dec
16
comment How do creation operators change with time in an interacting theory?
@DanielSank as far as I am concerned, this is not overkill. But I would also like to see a qualitative discussion on how the operators differ.
Dec
15
comment How do creation operators change with time in an interacting theory?
I have seen this derivation in textbooks indeed, but the physical meaning eludes me. Do the operators vary in norm, or in phase ? What is the difference between the asymptotic states created ?
Dec
15
comment Is it possible to assign a physical radius to a black hole?
If we do that for the horizon, the line element reduces to $r_S^2d\theta^2$, so that makes it the same as saying that the radius is equal to the Schwarzschild radius?
Dec
15
asked Is it possible to assign a physical radius to a black hole?
Dec
15
answered Can a quantum field be understood as a superposition of all particles' wave functions?
Dec
12
asked How do creation operators change with time in an interacting theory?
Dec
10
awarded  Nice Question
Nov
27
answered Entropy change in irreversible heat flow
Nov
12
awarded  Popular Question
Nov
6
comment How do we measure pressure above a liquid column?
Pascal's law means that the pressure force on any elementary surface is independent of the direction of the surface. It does not means that the pressure can not vary from point to point.
Nov
5
answered Entropy of ideal gas with finite volume
Nov
5
answered Comparison between entropy and internal energy
Nov
4
answered Second Law from Statistics