# Analytic continuation of thermal N-point functions from imaginary to real energies

Baier R, Niegawa A (1994)

Physical review D: Particles, fields, gravitation, and cosmology 49(8): 4107-4112.

Download

*Journal Article*|

*Published*|

*English*

Author

Baier, Rudolf

^{UniBi}; Niegawa, A.Abstract

Thermal n-point Green functions in the framework of quantum field theory at finite temperature are considered. We reanalyze how analytic continuations from imaginary to real energies relate these functions originally defined in the imaginary-time formalism to retarded and advanced realtime ones. We described a new and rather simple method which is valid to all orders of perturbation theory and which has the further advantage that it is independent of approximations often applied in actual finite-order calculations.

Publishing Year

ISSN

PUB-ID

### Cite this

Baier R, Niegawa A. Analytic continuation of thermal N-point functions from imaginary to real energies.

*Physical review D: Particles, fields, gravitation, and cosmology*. 1994;49(8):4107-4112.Baier, R., & Niegawa, A. (1994). Analytic continuation of thermal N-point functions from imaginary to real energies.

*Physical review D: Particles, fields, gravitation, and cosmology*,*49*(8), 4107-4112. doi:10.1103/PhysRevD.49.4107Baier, R., and Niegawa, A. (1994). Analytic continuation of thermal N-point functions from imaginary to real energies.

*Physical review D: Particles, fields, gravitation, and cosmology*49, 4107-4112.Baier, R., & Niegawa, A., 1994. Analytic continuation of thermal N-point functions from imaginary to real energies.

*Physical review D: Particles, fields, gravitation, and cosmology*, 49(8), p 4107-4112. R. Baier and A. Niegawa, “Analytic continuation of thermal N-point functions from imaginary to real energies”,

*Physical review D: Particles, fields, gravitation, and cosmology*, vol. 49, 1994, pp. 4107-4112. Baier, R., Niegawa, A.: Analytic continuation of thermal N-point functions from imaginary to real energies. Physical review D: Particles, fields, gravitation, and cosmology. 49, 4107-4112 (1994).

Baier, Rudolf, and Niegawa, A. “Analytic continuation of thermal N-point functions from imaginary to real energies”.

*Physical review D: Particles, fields, gravitation, and cosmology*49.8 (1994): 4107-4112.
This data publication is cited in the following publications:

This publication cites the following data publications:

### 4 Citations in Europe PMC

Data provided by Europe PubMed Central.

Energy and pressure densities of a hot quark-gluon plasma.

Hisamatsu Y, Niegawa A.,

PMID: 10020333

Hisamatsu Y, Niegawa A.,

*Phys. Rev., D*53(6), 1996PMID: 10020333

Finite-temperature Feynman propagator in operator form.

Weldon HA.,

PMID: 10020016

Weldon HA.,

*Phys. Rev., D*53(12), 1996PMID: 10020016

Dilepton production in a chemically equilibrating, expanding, and hadronizing quark-gluon plasma.

Kampfer B, Pavlenko OP, Peshier A, Soff G.,

PMID: 9970801

Kampfer B, Pavlenko OP, Peshier A, Soff G.,

*Phys. Rev., C Nucl. Phys.*52(5), 1995PMID: 9970801

Transformations of real-time finite-temperature Feynman rules.

van Eijck MA , Kobes R, van Weert CG .,

PMID: 10018049

van Eijck MA , Kobes R, van Weert CG .,

*Phys. Rev., D*50(6), 1994PMID: 10018049

### 32 References

Data provided by Europe PubMed Central.

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

AUTHOR UNKNOWN, 0

### Export

0 Marked Publications### Web of Science

View record in Web of Science®### Sources

PMID: 10017416

PubMed | Europe PMC

arXiv hep-ph/9307362

Inspire 35554