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condensed matter physics

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Top posts (32) All Questions Answers | Votes Newest

9 How can we “exchange” particles, since they are “identical”? Oct 20 '15
6 $(\frac{1}{2},\frac{1}{2})$ and $(\frac{1}{2},0)\bigoplus (0,\frac{1}{2})$ [duplicate] Dec 2 '15
5 What is the physical meaning of the Fourier transformed Coulomb potential $1/q^2$? Aug 24 '18
5 Can we regard field operator $\Psi (x)$ as $a_{x}^{\dagger }$ ,$a_{x}$? Nov 4 '14
4 The Pauli exclusion principle and the Pfaffian Dec 16 '18
3 Majorara zero mode in Ising chain, not exactly zero subtlety Apr 29 '16
3 Rank $L$ spherical harmonic tensor as a $2L+1$ dimensional Cartesian vector? Jan 16 '14
3 What is canonical momentum? Jun 16 '15
3 Why does holding something up cost energy while no work is being done? Aug 25 '18
2 Physical meaning of $\langle 0|S(+\infty,-\infty)|0 \rangle$ Oct 8 '17
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