User Hossein

7 votes

'Slow variation' in WKB approximation as precise mathematical condition

answered Oct 9, 2022 at 0:19

6 votes

Could I, within my lifetime, reach any star I wanted if I went fast enough?

answered Apr 10, 2022 at 14:18

5 votes

Does the Hilbert space include states that are not solutions of the Hamiltonian?

answered Sep 17, 2016 at 19:59

4 votes

Double slit experiment: how to derive the figure of interference?

answered Jun 6, 2022 at 21:07

4 votes

Relationship between Wilson's RG and the Callan-Symanzik Equation's normalization scale

answered Jul 11, 2022 at 22:30

3 votes

Is it possible to simplify this operator? Special case of Hadamard's formula

answered Oct 9, 2022 at 20:01

3 votes

Accepted

Why does vaporization require more energy, compared to melting?

answered Nov 1, 2016 at 12:06

3 votes

Ginzburg criterion and superconductivity

answered Dec 16, 2016 at 8:58

2 votes

Why $F_\mu V^\mu=0$ in special relativity?

answered Jun 13, 2016 at 13:39

2 votes

Connection between the $\beta$-function and critical exponents

answered Sep 12, 2022 at 13:16

1 vote

How does the creation of Cooper pairs and their condensation explains superconductivity?

answered Sep 10, 2022 at 13:31

1 vote

How to implement perturbation theory without unperturbed Hamiltonian?

answered Jun 11, 2022 at 8:26

1 vote

It is possible to have a drag force which is non-Lipschitz?

answered Jun 11, 2022 at 21:33

1 vote

Why does a degenerate band create a non-analytic band?

answered Apr 24, 2023 at 21:57

1 vote

Accepted

Born's interpretation for momentum operator

answered Jul 19, 2016 at 18:21

1 vote

Charge distribution on a conductor surface

answered Jul 22, 2016 at 7:47

1 vote

Accepted

Time-ordered correlation function in an interacting theory

answered Nov 7, 2016 at 7:15

1 vote

Accepted

Quantum statistics for interacting systems

answered Dec 2, 2018 at 6:52

1 vote

Why discontinuous density of states will cause isolated energy pole when perturbation is applied to it?

answered Apr 10, 2022 at 12:16

1 vote

Accepted

Thermal Expansion in Isotropic Objects

answered Apr 10, 2022 at 14:30

1 vote

What happens to a quantum harmonic oscillator at $T = 0$?

answered Apr 10, 2022 at 14:38

0 votes

Why is the supercurrent the functional derivative of the Ginzberg Landau free energy with respect to the vector potential?

answered Apr 10, 2022 at 18:25

0 votes

What does "energetically favorable" mean?

answered Apr 29, 2022 at 8:09

0 votes

Evaluation of thermal average with path integral

answered Apr 10, 2022 at 13:04

0 votes

Computing the partition funciton of 2 identical particles in a harmonic oscillator

answered Apr 10, 2022 at 14:10

0 votes

Why is net torque zero in this case?

answered Apr 10, 2022 at 10:36

0 votes

Do the results of statistical mechanics depend upon the choice of macrostates?

answered Dec 5, 2016 at 0:00

0 votes

Problem in solving a differential equation

answered Nov 2, 2016 at 7:18

0 votes

Accepted

How can we derive equations of collision without momentum

answered Nov 2, 2016 at 7:44

0 votes

Sign of Feynman rules with derivative couplings

answered Dec 12, 2015 at 17:28

Stack Exchange Network

35 Answers

'Slow variation' in WKB approximation as precise mathematical condition

Could I, within my lifetime, reach any star I wanted if I went fast enough?

Does the Hilbert space include states that are not solutions of the Hamiltonian?

Double slit experiment: how to derive the figure of interference?

Relationship between Wilson's RG and the Callan-Symanzik Equation's normalization scale

Is it possible to simplify this operator? Special case of Hadamard's formula

Why does vaporization require more energy, compared to melting?

Ginzburg criterion and superconductivity

Why $F_\mu V^\mu=0$ in special relativity?

Connection between the $\beta$-function and critical exponents

How does the creation of Cooper pairs and their condensation explains superconductivity?

How to implement perturbation theory without unperturbed Hamiltonian?

It is possible to have a drag force which is non-Lipschitz?

Why does a degenerate band create a non-analytic band?

Born's interpretation for momentum operator

Charge distribution on a conductor surface

Time-ordered correlation function in an interacting theory

Quantum statistics for interacting systems

Why discontinuous density of states will cause isolated energy pole when perturbation is applied to it?

Thermal Expansion in Isotropic Objects

What happens to a quantum harmonic oscillator at $T = 0$?

Why is the supercurrent the functional derivative of the Ginzberg Landau free energy with respect to the vector potential?

What does "energetically favorable" mean?

Evaluation of thermal average with path integral

Computing the partition funciton of 2 identical particles in a harmonic oscillator

Why is net torque zero in this case?

Do the results of statistical mechanics depend upon the choice of macrostates?

Problem in solving a differential equation

How can we derive equations of collision without momentum

Sign of Feynman rules with derivative couplings