437 reputation
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location Kanpur, India
age 22
visits member for 2 years
seen 2 days ago

Sep
30
awarded  Explainer
Sep
28
awarded  Yearling
Sep
10
comment The triangle inequality in CHSH derivation, where is the triangle?
In equation 6 of the Wikipedia link in the question, we have something that reads like $X - Y = a - b$, which upon taking the modulus becomes $|X - Y| \leq |a| + |b| $. Here the modulus is simply the absolute value of the real numbers X, Y, a and b. So there is no length in "metres", because there is no length scale associated with this problem. I am sorry if my previous comment confused you, the vectorial notation is not really necessary since you are simply dealing with numbers on the real line here.
Sep
10
comment The triangle inequality in CHSH derivation, where is the triangle?
The triangle inequality is a special case of the Cauchy-Schwarz inequality, which is the one applicable here since you are taking norms of the expectation value. The "triangle" formed is the one with the sides $ \bar{X} $, $\bar{Y}$, and $\bar{X}+ \bar{Y}$.
May
10
comment Why didn't we replace our SI units with a better system?
@GlenTheUdderboat it seems like you have missed three important negative signs in the exponent for the values of $h$, $e,$ and $k$.
Apr
29
comment Weak measurement and Hardy's paradox
Is the 3rd condition supposed to be B' = -1? The third paragraph that follows the conditions and the wave function seem to indicate this.
Apr
4
awarded  Excavator
Apr
4
revised Aharonov-Bohm Effect and Integer Quantum Hall Effect
The earlier link was broken, updated it now.
Apr
4
suggested suggested edit on Aharonov-Bohm Effect and Integer Quantum Hall Effect
Feb
21
awarded  Citizen Patrol
Feb
10
comment How can a photon have no mass and still travel at the speed of light?
There can also exist massive point particles. The introduction of length contraction is really irrelevant here.
Feb
10
comment How can a photon have no mass and still travel at the speed of light?
Compaction due to length contraction is not a valid concept for a point particle like a photon, and in any case, it is not related to increase in relativistic mass.
Feb
5
revised Uniform Circular Motion Confusion
Added the 'homework' tag
Feb
5
suggested suggested edit on Uniform Circular Motion Confusion
Jan
30
comment (thought) experiment re: Bell's Theorem and Schrodinger's cat
That's all right. Paradoxes are a nice way to really think about a system and understand what goes on properly. :)
Jan
27
answered (thought) experiment re: Bell's Theorem and Schrodinger's cat
Jan
27
accepted Is boson sampling a problem in 'continuous variable' quantum information?
Jan
22
comment Is boson sampling a problem in 'continuous variable' quantum information?
Thanks for the answer! I'll hold from accepting it for now because I would like to see some more discussion on the precise meaning of continuous variables in CV quantum information.
Jan
14
asked Is boson sampling a problem in 'continuous variable' quantum information?
Dec
15
awarded  Yearling