User BebopButUnsteady

94 votes

Accepted

How is the Saddle point approximation used in physics?

answered Sep 14, 2011 at 0:29

33 votes

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Can an object accelerate to infinite speed in a finite time-interval in non-relativistic Newtonian mechanics?

answered Aug 4, 2011 at 18:04

29 votes

Is it possible for information to be transmitted faster than light by using a rigid pole?

answered Aug 8, 2011 at 22:26

27 votes

Is there some connection between the Virial theorem and a least action principle?

answered Jul 5, 2013 at 15:21

15 votes

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Would there be time dilation at the point where two gravitational fields cancel each other out?

answered Jul 6, 2011 at 1:45

12 votes

Possible research implications of proof of John Cardy's a-theorem in QFT

answered Nov 16, 2011 at 17:51

12 votes

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Continuous phase transition only hold for infinite systems. Real systems are finite, hence, a paradox

answered Jul 5, 2013 at 19:23

12 votes

Why is the Fermi surface stable?

answered Jun 27, 2013 at 20:50

11 votes

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What is the difference between a black hole and a point particle?

answered Jul 18, 2011 at 17:24

9 votes

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Why is calcium paramagnetic?

answered Jul 12, 2013 at 16:44

8 votes

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Example of a wavefunction that cannot be represented by a single Slater determinant

answered Jun 22, 2011 at 3:27

8 votes

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Pairing symmetry / superconducting gap symmetry

answered Sep 14, 2011 at 5:31

8 votes

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General integral to find resistance

answered Mar 5, 2012 at 6:56

7 votes

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Particles mass determined by SO(D-2) vs SO(D-1)

answered Aug 8, 2011 at 16:10

7 votes

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Can solar furnace achieve higher temperature than sun surface?

answered Jul 1, 2013 at 19:20

7 votes

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What are the local covariant tensors one can form from the metric?

answered Jun 18, 2013 at 17:30

7 votes

Accepted

Distinguish electron-like and hole-like orbits in reciprocal space, with reference to the Brillouin Zones

answered May 10, 2013 at 0:07

7 votes

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current operator in Hubbard model

answered Jul 10, 2013 at 18:04

6 votes

spectral function in condensed matter physics

answered Jul 10, 2013 at 18:11

6 votes

What is Anderson localization? Could someone give an example worked out in detail?

answered Apr 30, 2013 at 5:21

6 votes

What do mathematicians mean by Navier Stokes existence and smoothness problem?

answered Jun 28, 2013 at 18:09

6 votes

Accepted

Explanation of Cardy's "a theorem"

answered Nov 21, 2011 at 20:28

6 votes

Is the Lorentz group compact (and if not, is U(1)?)

answered Oct 26, 2011 at 17:41

6 votes

What non-metal is attracted by a magnet?

answered Apr 10, 2012 at 17:29

5 votes

Why is the decay of neutral kaons (violates CP invariance) seemingly not sufficient enough for certain people to describe matter-antimatter imbalance?

answered Jun 23, 2011 at 21:33

5 votes

Concentrating Sunlight to initiate fusion reaction

answered Jul 1, 2013 at 15:02

5 votes

What is the RC time constant in a superconductor?

answered Jul 1, 2013 at 15:35

5 votes

penetration of a solid body in a liquid

answered Jun 26, 2013 at 18:03

5 votes

Spontaneous symmetry breaking in classical mechanics, quantum mechanics and quantum field theory

answered Jun 27, 2013 at 3:46

5 votes

Are two waves being in phase the same as saying that the two waves are coherent?

answered Mar 12, 2013 at 9:22

Stack Exchange Network

92 Answers

How is the Saddle point approximation used in physics?

Can an object accelerate to infinite speed in a finite time-interval in non-relativistic Newtonian mechanics?

Is it possible for information to be transmitted faster than light by using a rigid pole?

Is there some connection between the Virial theorem and a least action principle?

Would there be time dilation at the point where two gravitational fields cancel each other out?

Possible research implications of proof of John Cardy's a-theorem in QFT

Continuous phase transition only hold for infinite systems. Real systems are finite, hence, a paradox

Why is the Fermi surface stable?

What is the difference between a black hole and a point particle?

Why is calcium paramagnetic?

Example of a wavefunction that cannot be represented by a single Slater determinant

Pairing symmetry / superconducting gap symmetry

General integral to find resistance

Particles mass determined by SO(D-2) vs SO(D-1)

Can solar furnace achieve higher temperature than sun surface?

What are the local covariant tensors one can form from the metric?

Distinguish electron-like and hole-like orbits in reciprocal space, with reference to the Brillouin Zones

current operator in Hubbard model

spectral function in condensed matter physics

What is Anderson localization? Could someone give an example worked out in detail?

What do mathematicians mean by Navier Stokes existence and smoothness problem?

Explanation of Cardy's "a theorem"

Is the Lorentz group compact (and if not, is U(1)?)

What non-metal is attracted by a magnet?

Why is the decay of neutral kaons (violates CP invariance) seemingly not sufficient enough for certain people to describe matter-antimatter imbalance?

Concentrating Sunlight to initiate fusion reaction

What is the RC time constant in a superconductor?

penetration of a solid body in a liquid

Spontaneous symmetry breaking in classical mechanics, quantum mechanics and quantum field theory

Are two waves being in phase the same as saying that the two waves are coherent?