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Physics
Ruben Verresen's user avatar
Ruben Verresen's user avatar
Ruben Verresen's user avatar
Ruben Verresen
  • Member for 11 years, 10 months
  • Last seen this week
  • Cambridge, MA, USA
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answer
65
Does entropy depend on the observer?
Feb 27, 2017
answer
38
Why can interaction with a macroscopic apparatus, such as a Stern-Gerlach machine, sometimes not cause a measurement?
Sep 26, 2016
answer
30
Curvature of Hilbert space
Jun 28, 2016
answer
29
How do you find a Schmidt basis, and how can the Schmidt decomposition be used for operators?
Apr 23, 2016
answer
26
Physical meaning of Legendre transformation
Aug 16, 2019
answer
25
$\mathbb Z_2$ or $\mathbb Z$ invariant for the Su-Schrieffer-Heeger (SSH) model
Jun 19, 2018
answer
24
Hubbard-Stratonovich transformation and mean-field approximation
Aug 6, 2019
answer
22
What is the difference between a magnon and a spinon?
Jan 30, 2017
question
20
Conformal Field Theory in 1+1d Spontaneously Breaking Conformal Symmetry
Dec 30, 2016
question
19
Is the Ising CFT different from the Majorana CFT?
May 3, 2017
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42
Why is this combination of nearest-integer functions --- surprisingly --- continuous?
13
What is the significance of the $\mathbb Z_2 \times \mathbb Z_2$ subgroup of $SO(3)$?
12
How to find the Takagi decomposition of a symmetric (unitary) matrix?
11
Roots of partial sum of power series
10
Energy quantization for $J$-holomorphic spheres