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Si Chen's user avatar
Si Chen's user avatar
Si Chen's user avatar
Si Chen
  • Member for 10 years, 11 months
  • Last seen more than a month ago
6 votes
1 answer
111 views

Why can time-translation invariant quantum operations never increase coherence between energy eigenspaces?

5 votes
1 answer
2k views

Deriving the Lienard-Wiechert Potentials

3 votes
1 answer
1k views

Do the incompressible Navier-Stokes Equations apply to incompressible fluids or incompressible flows?

3 votes
2 answers
3k views

Why is the eye of a cyclone a forced vortex?

3 votes
2 answers
260 views

Effect of Co-ordinate Change on Euler-Lagrange Equations for Scalar Fields

2 votes
1 answer
115 views

Choosing an Irreducible Tensor Operator Basis where the Singular Values of Each Basis Element are the Same

2 votes
1 answer
401 views

Consistent method for finding direction of static friction

2 votes
2 answers
252 views

What wavefunctions do the creation operator of a massive real scalar free field create?

2 votes
2 answers
3k views

Rod Falling on Frictionless Surface

1 vote
1 answer
273 views

Reducing unitary evolution operator of a two-spin system to the evolution operator of one of the spins

1 vote
2 answers
2k views

Current on both sides of a capacitor

1 vote
2 answers
490 views

Tension in a massless string as it bends around a concave shape

0 votes
3 answers
2k views

Reaction Force on String Wrapped Around Circular Peg

0 votes
3 answers
474 views

Rod partially handing off edge of table

0 votes
2 answers
353 views

Applying the Clausius inequality to three systems