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Vivian

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 4 years, 7 months
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  • Last seen Aug 29 '20 at 10:18

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5 Does the spin1/2 rotation operator rotate spin in real space? Feb 11 '17
4 Why the generator of $U(1)$ is the particle number operator $N$? Feb 13 '17
4 why entanglement entropy is important in topological phases？ Feb 13 '17
4 What is the difference between symmetry protected topological (SPT) order and topological order? Feb 15 '17
4 What is the 4-dimensional matrix representation of rotation operator? Feb 22 '17
3 Conductivity Matrix (Symmetry Information) May 9 '17
2 If a system has a symmetry, must the non-degenerate Ground state of it be the one-dimensional irreducible representation of the symmetry group? Apr 25 '17
2 What is the Single Mode Approximation? May 30 '16
2 How to use the Invariant expansion method to get the Dirac equation near the K point of graphene? Oct 31 '16
1 What is the relation between the compressibility defined in electron liquid and that defined in thermodynamics? Mar 16 '17
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