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Ptheguy
  • Member for 8 years, 7 months
  • Last seen more than 1 year ago
6 votes
2 answers
1k views

Expectation value of operators with non-zero Hamiltonian commutators

5 votes
2 answers
3k views

Triplet and singlet states: fermionic or bosonic?

5 votes
2 answers
1k views

How to make physical sense of negative temperatures

3 votes
2 answers
1k views

Why does a heat engine convert only some of the heat into work

3 votes
1 answer
7k views

Lagrange Multipliers for Simple Pendulum [closed]

3 votes
4 answers
181 views

Quantum State Representation with Commuting Operators

3 votes
2 answers
21k views

Obtaining Surface Charge Density from the Potential

3 votes
2 answers
1k views

Understanding the meaning of (and using) Maxwell Stress Tensor

2 votes
3 answers
1k views

Effective potential of a two-body system

2 votes
3 answers
2k views

Sign of torque when rolling an object down an incline

2 votes
1 answer
472 views

Tensor products and the relation between Hilbert space and the Real space

2 votes
3 answers
1k views

Precise Meaning of Grand Canonical Partition Function

1 vote
2 answers
263 views

What distance minimizes the torque applied at all points on the bar?

1 vote
1 answer
310 views

Conservative force and its Potential Energy Function

1 vote
1 answer
2k views

Maxwell Boltzmann Distribution in Molecular Dynamics Simulation

1 vote
2 answers
275 views

Rotation operator as discussed in S. Weinberg

0 votes
1 answer
1k views

Meaning of the focus of an elliptical orbit

0 votes
1 answer
96 views

Spacetime Double Fourier Transform to get a wave

-1 votes
1 answer
142 views

Two qubit system and the notion of mixed states