[tex]\hat{H}_{BCS}=\sum_{\vec{p},\sigma}\epsilon(\vec{p})\hat{a}^+_{\vec{p},\sigma}\hat{a}_{\vec{p},\sigma}+\sum_{\vec{p},\vec{p}'}V(\vec{p},\vec{p}')\hat{a}^+_{\vec{p}\uparrow}\hat{a}^+_{-\vec{p}\downarrow}\hat{a}_{-\vec{p}'\downarrow}\hat{a}_{\vec{p}'\uparrow}[/tex](adsbygoogle = window.adsbygoogle || []).push({});

What is the meaning of the terms [tex]\hat{a}^+_{\vec{p}\uparrow},\hat{a}^+_{-\vec{p}\downarrow}[/tex]... ?

If I work mean- field approximation

[tex]\hat{H}_{BCS}=\hat{H}_0+\hat{H}_2+\delta\hat{H}[/tex]

What is the procedure to find terms [tex]\hat{H}_0[/tex], [tex]\hat{H}_2[/tex], [tex]\delta\hat{H}[/tex]?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Hamiltonian of BCS theory

Loading...

Similar Threads for Hamiltonian theory |
---|

A The Hamiltonian of the XY model -- when is it called the XX model? |

A Physical meaning of terms in the Qi, Wu, Zhang model |

A Eigenvectors of a Floquet Hamiltonian |

A Fourier Transforming a HgTe 2D Hamiltonian |

**Physics Forums | Science Articles, Homework Help, Discussion**