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  • 21 votes cast
Feb
23
awarded  Popular Question
May
3
comment Sparse subset of a vector space and entanglement
Please don't write clearly vague or vaguely clear comments. If you don't have eyes just to confirm you that I wanted concrete mathematical ideas or examples not your wise advice
May
3
asked Sparse subset of a vector space and entanglement
Oct
8
accepted why non orthogonal states are indistinguishable?
Oct
7
accepted A question on partial trace and density matrix computation
Oct
7
revised Dimension of separable state
deleted 144 characters in body
Oct
7
accepted Dimension of separable state
Oct
7
comment Intuition on positive-operator valued measures (POVM)
I think they are positive means they are positive definite?
Oct
5
awarded  Teacher
Oct
4
asked why non orthogonal states are indistinguishable?
Sep
2
comment A question on partial trace and density matrix computation
then it must be a $2\times 2$ matrix but in the book it is $3\times 2$ matrix
Sep
2
asked A question on partial trace and density matrix computation
Sep
1
comment Dimension of separable state
Thanks! I am trying to understand your point
Sep
1
comment Dimension of separable state
ah! algebraic geometry is everywhere! but I am such a poor fellow who doesn't understand, Thanks but sorry with my mathematics background I don't understand your answer
Sep
1
revised Dimension of separable state
added 7 characters in body
Sep
1
awarded  Scholar
Sep
1
revised $\exp(i\alpha\hat {\bf n}\cdot{\bf \sigma} )=\cos\alpha I+i(\hat {\bf n}\cdot{\bf \sigma})\sin\alpha$
edited title
Sep
1
accepted $\exp(i\alpha\hat {\bf n}\cdot{\bf \sigma} )=\cos\alpha I+i(\hat {\bf n}\cdot{\bf \sigma})\sin\alpha$
Sep
1
comment $\exp(i\alpha\hat {\bf n}\cdot{\bf \sigma} )=\cos\alpha I+i(\hat {\bf n}\cdot{\bf \sigma})\sin\alpha$
@gj255 Thank you for the reply
Sep
1
asked Dimension of separable state