User Constantine Black

7 votes

1 answer

12k views

Spin commutation relations

asked May 14, 2015 at 15:15

6 votes

1 answer

2k views

About the factorial N! in the partition function

asked Jun 13, 2015 at 13:15

5 votes

1 answer

756 views

Einstein model for thermal capacity of solids and indistinguishability of the oscillators

asked Jun 13, 2015 at 12:46

5 votes

3 answers

900 views

Entropy: Disorder or energy dispersal?

asked Apr 16, 2015 at 13:37

5 votes

2 answers

325 views

On the expansion of space on small distances

asked May 28, 2016 at 19:02

5 votes

1 answer

2k views

Construction of interaction Lagrangian invariant under isospin $SU(2)$ transformations

asked Jan 13, 2017 at 10:47

5 votes

1 answer

408 views

Calculation of vaccuum expectation value in Chiral Perturbation Theory

asked Jul 19, 2017 at 17:39

4 votes

4 answers

4k views

What can change a photon's frequency?

asked May 25, 2015 at 16:20

4 votes

2 answers

1k views

Time dependent Hamiltonian and Gauge invariance

asked Apr 19, 2015 at 13:41

3 votes

1 answer

2k views

Difference in partition function of classical and quantum Ideal gas

asked May 26, 2015 at 13:40

2 votes

1 answer

230 views

Definition of kinetic energy without the second Law of Newton

asked Apr 16, 2015 at 8:55

2 votes

0 answers

234 views

Calculation of Feynman invariant amplitude with internal global symmetry indices: trace over\and isospin

asked Oct 16, 2017 at 17:08

2 votes

1 answer

899 views

Calculation of Feynman amplitude for pseudoscalar coupling: gamma-five matrix calculations

asked Oct 21, 2016 at 15:33

2 votes

2 answers

823 views

Electric field energy of two parallel moving charges at relativity speeds

asked Jun 24, 2015 at 9:47

1 vote

1 answer

243 views

About the combination of two signals with capacitors

asked Jul 23, 2015 at 18:48

1 vote

2 answers

6k views

Coefficients and wavefunction in quantum mechanics

asked Nov 8, 2015 at 20:56

1 vote

0 answers

697 views

Phase shift calculation in quantum scattering for potential $V=a/r^2 $. Neumann function missing

asked Feb 21, 2016 at 11:49

1 vote

1 answer

2k views

Perturbation by electrical field in infinite potential well: difference in first energy corrections because of difference in the limits of the well

asked Feb 23, 2016 at 21:54

1 vote

1 answer

269 views

Unitary matrix of pionic fields and pions as coordinate vectors

asked Nov 21, 2016 at 10:04

1 vote

1 answer

174 views

On the identification of asymptotically free in and out states for a certain interaction Lagrangian

asked Feb 8, 2017 at 10:12

1 vote

1 answer

175 views

Group actions and the possibility of physical interest for non-transitive group actions

asked Dec 15, 2017 at 17:24

1 vote

1 answer

420 views

Scattering amplitude calculation using first order Chiral Perturbation Theory Lagrangian

asked Sep 2, 2017 at 9:09

1 vote

1 answer

495 views

About shift operators

asked Apr 25, 2015 at 16:22

1 vote

1 answer

55 views

About friction contributing to speed

asked Jun 20, 2015 at 14:36

1 vote

0 answers

63 views

Information and entaglement via determination of the first's system state with interaction

asked Jun 22, 2015 at 10:55

1 vote

3 answers

255 views

How Statistical Physics?

asked Jun 6, 2015 at 11:02

1 vote

3 answers

4k views

Constants of motion in quantum mechanics

asked Apr 16, 2015 at 16:55

0 votes

1 answer

2k views

Solving Lagrangian equations of motion for two point-bodies with gravitational interaction

asked Apr 17, 2015 at 16:52

0 votes

1 answer

228 views

Quantum state of a system after measurements with non-commutative operators

asked Apr 18, 2015 at 11:06

0 votes

1 answer

123 views

Aharonov-Bohm experiment: A possible way to understand potentials?

asked Apr 18, 2015 at 12:16

Stack Exchange Network

35 Questions

Spin commutation relations

About the factorial N! in the partition function

Einstein model for thermal capacity of solids and indistinguishability of the oscillators

Entropy: Disorder or energy dispersal?

On the expansion of space on small distances

Construction of interaction Lagrangian invariant under isospin $SU(2)$ transformations

Calculation of vaccuum expectation value in Chiral Perturbation Theory

What can change a photon's frequency?

Time dependent Hamiltonian and Gauge invariance

Difference in partition function of classical and quantum Ideal gas

Definition of kinetic energy without the second Law of Newton

Calculation of Feynman invariant amplitude with internal global symmetry indices: trace over\and isospin

Calculation of Feynman amplitude for pseudoscalar coupling: gamma-five matrix calculations

Electric field energy of two parallel moving charges at relativity speeds

About the combination of two signals with capacitors

Coefficients and wavefunction in quantum mechanics

Phase shift calculation in quantum scattering for potential $V=a/r^2 $. Neumann function missing

Perturbation by electrical field in infinite potential well: difference in first energy corrections because of difference in the limits of the well

Unitary matrix of pionic fields and pions as coordinate vectors

On the identification of asymptotically free in and out states for a certain interaction Lagrangian

Group actions and the possibility of physical interest for non-transitive group actions

Scattering amplitude calculation using first order Chiral Perturbation Theory Lagrangian

About shift operators

About friction contributing to speed

Information and entaglement via determination of the first's system state with interaction

How Statistical Physics?

Constants of motion in quantum mechanics

Solving Lagrangian equations of motion for two point-bodies with gravitational interaction

Quantum state of a system after measurements with non-commutative operators

Aharonov-Bohm experiment: A possible way to understand potentials?