User Paweł Korzeb - Physics Stack Exchange

2 votes

1 answer

140 views

Do we have any guarantee that the Noether current of continuous symmetry is non-zero? (Inspired by calculating $SO(2)$ charge of Majorana Fermion)

asked Apr 7, 2022 at 12:25

2 votes

0 answers

101 views

Why magnon band is half filled in XY model?

asked Sep 9, 2022 at 19:34

2 votes

2 answers

326 views

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

asked Sep 10, 2022 at 8:45

2 votes

1 answer

130 views

Definition of symmetry factor $p$ in Feynmans diagrams symmetry factor in Coleman's "Introduction to Many-Body Physics"

asked Sep 16, 2022 at 16:34

2 votes

0 answers

60 views

Is a worm-like-chain purely entropic?

asked Nov 17, 2022 at 17:38

2 votes

1 answer

33 views

Proper understanding of the force implied on the container's wall by the hydrostatic preasure [closed]

asked Feb 15, 2023 at 20:52

1 vote

1 answer

78 views

How one can use Wick's theorem for the product $A:\mathrel{B^{n}}:$?

asked Nov 26, 2022 at 12:18

0 votes

0 answers

194 views

What is the meaning of a propagator of a Dirac field and how to get a probability of a process from it?

asked Mar 19, 2022 at 14:21

0 votes

1 answer

75 views

Fermionic coherent state in Fock representation

asked Sep 10, 2022 at 19:02

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9 Questions

Do we have any guarantee that the Noether current of continuous symmetry is non-zero? (Inspired by calculating $SO(2)$ charge of Majorana Fermion)

Why magnon band is half filled in XY model?

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

Definition of symmetry factor $p$ in Feynmans diagrams symmetry factor in Coleman's "Introduction to Many-Body Physics"

Is a worm-like-chain purely entropic?

Proper understanding of the force implied on the container's wall by the hydrostatic preasure [closed]

How one can use Wick's theorem for the product $A:\mathrel{B^{n}}:$?

What is the meaning of a propagator of a Dirac field and how to get a probability of a process from it?

Fermionic coherent state in Fock representation