Bethe–Salpeter equation
E75707
The Bethe–Salpeter equation is a relativistic quantum field theory equation that describes bound states of two interacting particles, such as electron–hole pairs in quantum electrodynamics.
Aliases (3)
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
equation in quantum field theory
→
integral equation → relativistic wave equation → |
| appliesTo |
electron–hole systems in solids
→
electron–positron systems → fermion–antifermion systems → two interacting particles → |
| approximation |
ladder approximation
→
rainbow–ladder approximation → |
| basedOn |
quantum field theory
→
relativistic covariance → |
| describes |
bound states in quantum chromodynamics
→
bound states in quantum electrodynamics → electron–hole pairs → excitons → mesons → relativistic bound states → two-particle bound states → |
| field |
many-body physics
→
particle physics → quantum field theory → theoretical physics → |
| formulation |
integral equation in four-dimensional spacetime
→
|
| generalizes |
Schrödinger equation to relativistic bound states
→
|
| introducedBy |
Erwin Salpeter
→
Hans Bethe → |
| involves |
interaction kernel
→
propagators of constituent particles → relative four-momentum → total four-momentum → |
| namedAfter |
Erwin Salpeter
→
Hans Bethe → |
| originalContext |
relativistic treatment of bound states in quantum electrodynamics
→
|
| publicationYear |
1951
→
|
| relatedTo |
Dyson–Schwinger equations
→
Lippmann–Schwinger equation → Schrödinger equation → |
| relates |
two-particle Green’s function to interaction kernel
→
|
| solutionType |
Bethe–Salpeter amplitude
→
two-particle wave function in momentum space → |
| usedIn |
GW-BSE approach to electronic excitations
→
ab initio calculations of optical spectra → exciton calculations in condensed matter physics → hadron spectroscopy → many-body perturbation theory → meson structure calculations → |
| uses |
Bethe–Salpeter kernel
→
four-point Green’s function → two-particle Green’s function → |
Referenced by (6)
| Subject (surface form when different) | Predicate |
|---|---|
|
Edwin E. Salpeter
("Bethe–Salpeter equation paper (1951)")
→
Hans Bethe → Hans Bethe → |
notableWork |
|
Edwin E. Salpeter
→
|
knownFor |
|
Bethe–Salpeter equation
("Bethe–Salpeter amplitude")
→
|
solutionType |
|
Bethe–Salpeter equation
("Bethe–Salpeter kernel")
→
|
uses |