Books

Ingvar Lindgren
Relativistic Many-Body Theory: A New Field-Theoretical Approach, Springer 2011

Errata list:http://www.springer.com/physics/quantum+physics/book/978-1-4419-8308-4

Ingvar Lindgren and John Morrison
Atomic Many-Body Theory, 2nd ed., Springer 1986

Scientific articles

Only for personal use

(See further, the complete list of publications from the Atomic Theory Group)

General

Ingvar Lindgren
Interpretation of Quantum Mechanics. A view of our universe. Invited talk at the Symposium "From Leonardo to Iter, Nonlinear and Coherence Aspects ", Göteborg 18-19 May, 2009
AIP Conference Proceedings Vol 1177, p 10-17, 2009

Ingvar Lindgren
Colloquium on "Many Worlds Interpretation", Göteborg 25 Sept. 2008 (slide show)


Ingvar Lindgren
Seminarium om "Kvantfysiken och vår världsbild", Göteborg 8 Nov. 2012 (slide show)

Ingvar Lindgren
Chemical shifts in X-ray and photo-electron spectroscopy. A historical review . Invited plenary talk: ICESS-9 International Conference on Electron Spectroscopy and Structure, Uppsala, July 2003
J. El. Spect. Rel. Phen. 137-140, 59-71 (2004)

Density-Funtional Theory

Ingvar Lindgren, Sten Salomonson and Fredrik Möller
Construction of accurate Kohn-Sham potentials for the lowest states of the helium atom . Invited paper: John Pople Memorial volume, Int. J. Quantum Chemistry 102, 1010-17 (2005)

Sten Salomonson, Fredrik Möller and Ingvar Lindgren
Accurate Kohn-Sham potential for the 1s2s 3S state of the helium atom: Tests of the locality and the ionization-potential theorems. Can. J. Phys. 83, 85 (2005)

Ingvar Lindgren and Sten Salomonson
Differentiability in density functional theory: Further study of the locality theorem, Phys. Rev. A 70, 032509 (2004).

Ingvar Lindgren and Sten Salomonson
Differentiability in density functional theory, Adv. Quantum Chem. 43, 95-117 (2003).

Ingvar Lindgren and Sten Salomonson
Comment on the Locality in Density-Functional Theory, Physical Review A 67, 056501 (2003).

Ingvar Lindgren and Sten Salomonson
Bruechner orbitals and density-functional theory, presented at Sanibel symposium, St Augustine, Florida, Feb. 2002
Int. J. Quantum Chem. 90 , 294-308 (2002).

Many-Body-QED

Ingvar Lindgren
Unifying Quantum-Electrodynamics and Many-Body Perturbation Theory
Invited talk at the Symposium New Horizons in Fundamental Physics, Makutsi, South Africa, 22-28 Nov. 2015 ( Slide presentation )

Ingvar Lindgren, Sten Salomonson and Johan Holmberg
Combination of Many-Body Perturbation Theory and Quantum Elecctrodynamics
Theor. Chem. Acta 134, 123 (2015)

Johan Holmberg, Sten Salomonson and Ingvar Lindgren,
Coulomb-gauge calculation of the combined effect of the correlation and QED for helium like highly charged ions,
Phys. Rev. A92, 012509 (2015)

 
Ingvar Lindgren, Sten Salomonson and Johan Holmberg
QED effects in scattering processes involving atomic bound states: Radiative recombination
Phys. Rev. A89, 062459 (2014)

Ingvar Lindgren
Development of Many-Body-Perturbation Theory: How to combine with quantum electrodynamics
Congress talk at VIII Congress of the Int. Soc. Theor. Chem. Phys. (ISTCP)Budapest Aug. 2013 ( Slide presentation )

Ingvar Lindgren, Sten Salomonson, Daniel Hedendahl, and Johan Holmberg
Combining quantum electrodynamics and electron correlation.
Invited talk presented at the conference on Nuclear Physics: Presence and Future, Jakobsberg, Germany, May 2013

Wenjian Liu and Ingvar Lindgren
Going beyond "no-pair relativistic quantum chemistry"
J.Chem.Phys. 139. 014108 (2013)

Ingvar Lindgren, Sten Salomonson, and Johan Holmberg
Energy-dependent perturbation theory:Possibility for improved tests of quantum-electrodynamics
arXiv/quant:ph/212.6842 Dec. 2012

Daniel Hedendahl and Johan Holmberg
Coulomb-gauge self-energy calculations for high-Z hydrogen ions.
Phys. Rev. A 85, 012514 (2012)

Johan Holmberg
Scalar vertex operator for bound-state QED in the Coulomb gauge .
Phys. Rev. A 84, 062504 (2011)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Combining Many-Body Perturbation and Quantum-Electrodynamics.
J. At. Mol. Opt. Phys. 10.1155/2011/723574 (2011)

Ingvar Lindgren
(2011) Unification of Many-Body Perturbation Theory and Quantum-Electrodynamics
Talk presented at the Conference on "Exciting Physics" at Makutsi-Range in South Africa, November 13-20, 2011 ( Slide presentation )

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Coupled clusters and quantum electrodynamics.
Published in "Recent Progress in Coupled-Cluster Theory", ed. by J.Pittner, P.Carsky, and J.Paldus (Springer 2010)

Ingvar Lindgren
Development of many-body perturbation theory.
Molecular Physics, 108, 2853-61, (2010)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Relativisticcally Covariant Many-Body Perturbation Procedure.
Congress lecture at the Sixth Congress of the International Society for Theoretical Chemical Physics (ISTCP-VI) in Vancouver, July 2008
Published in "Progress in Theoretical Chemistry and Physics", Vol. 19, p.93-113 (Springer 2009)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Energy-dependent perturbation theory for combined many-body and QED calculations.
Invited talk at 426.WE.Hereaus-Seminar on "Atomic Theory for Fundamental Interactions and Simple Systems in Strong Fields" at Bad Honnef, Germany, Jan. 2009 (Slide presentation)

Ingvar Lindgren
The helium fine-structure controversy.
arXiv:0810.0823v1 [quant-ph]

Ingvar Lindgren
A Covariant Form of Relativistic Many-Body Calculations
Talk presented at the symposium in Hamburg in honor of Peter Toschek's 75:th birthday, June 2, 2008 ( Slide presentation )

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
A Numerical Procedure for Combined Many-Body-QED Calculations.
Invited lecture at the Symposium of Advanced Method of Quantum Chemistry and Physics in honour of Karol Jankowski, Torun, Poland, September 2-6, 2007, Int. J. Quant. Chem. 108, 2272-79 (2008)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Field-Theoretical Approach to Many-Body Perturbation Theory: Combining MBPT and QED.
Talk presented at the ICCMSE 2007 at Corfu, September 2007, Slide presentation, AIP Proceedings 2, 80-83 (2007)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Combined QED and Electron Correlation in He-like ions.
Presentation at the SPARC meeting at GSI 17-18 July 2007 ( Slide presentation )

Ingvar Lindgren
Unified Theory of Many-Body-Quantum-Electrodynamics.
Invited lecture at the conference on Many-Body Aspects on Atomic and Molecular Systems , Toshali Sands, India, 11-15 January 2007 (Slide presentation)

Ingvar Lindgren
Energy-dependent Many-Body Perturbation Theory with Applications in Quantum-Electrodynamical Problems.
Invited Kapuy lecture , Budapest, 5 October 2006 ( Slide presentation )

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Many-body perturbation procedure for energy-dependent perturbation: Merging many-body perturbation theory with QED. Phys. Rev. A 73, 062502 (2006)

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Energy-dependent Many-Body perturbation theory: A road towards a Many-Body-QED procedure.
Talk presented at the ISHIP Symposium in Frankfurt, 2-6April 2006, Slide presentation, , Int. J. Modern Physics E16, 1221-31 (2007)

Ingvar Lindgren
MBPT for energy-dependent interactions: A road towards a merger of MBPT and QED
presented at the Conference on Microscopic Approaches to Many-Body Theory, in honour of Ray Bishop's 60th birthday, Manchester, UK, 30 August - 3 September, 2005) ( Slide presentation )

Ingvar Lindgren, Sten Salomonson, and Daniel Hedendahl
Many-body-QED perturbation theory: Connection to the Bethe-Salpeter equation.
Invited Einstein centennial paper, Can. J. Phys. 83, 183-218 (2005)

Ingvar Lindgren
Combined Many-Body-QED calculations: Numerical solution of the Bethe-Salpeter equation.
Slide presentation at the Symposium at the Memory of Gerhard Soff, 25-26 April 2005

Ingvar Lindgren, Sten Salomonson and Daniel Hedendahl
New Appproach to Many-Body-QED calculations: Merging Quantum-Electro-Dynamics with Many-Body Perturbation .
Presented at the conference HydrogenIII, Mangaratiba, Brazil, August 2004
Can. J. Phys. 83, 395-403 (2005) ( Slide presentation )

Ingvar Lindgren
Comparison between the many-body perurbative and Green's-function approaches for calculating electron binding energies and affinities: Brueckner and Dyson orbitals, in Fundamental World of Quantum Chemistry, III,
ed. E.J.Brändas and E.S.Kryachko, 215-245 (2004).

Ingvar Lindgren, Sten Salomonson and Björn Åsén
The Covariant-Evolution-Operator Method for Bound-state QED, Physics Reports, 389, 161-261 (2004).

Ingvar Lindgren
The helium fine structure , Review of the papers by Douglas and Kroll (Ann.Phys. N.Y. 82, 89, 1974) and Zhang (Phys.Rev. A 54, 1252, 1996) (unpublished notes 2004).

Ingvar Lindgren
Virtual pairs, Treatment of virtual pairs with pairfunctions with uncontracted photons
(unpublished notes 2004).

Ingvar Lindgren
Calculation of electron binding energies and affinities. Invited talk: Symposium in the honor of Professor Indrek Martinson, Lund, Physica Scripta T120, 15-18 (2005)

Ingvar Lindgren
Comparison between the many-body perturbative and Green's-function methods for calculating electron binding energies and affinities: Brueckner and Dyson orbitals. Invited paper: Löwdin memorial volume 3 (Kluwer Acad. Publ., Netherlands) (2003)

Ingvar Lindgren
Notes on Bound-State QED, Unpublished notes (2003).

Bj'f6rn 'c5s'e9n, Sten Salomonson, and Ingvar Lindgren
Two-photon-exchange QED effect in the 1s2s 1S and 3S states of heliumlike ions,
Physical Review A 65, 032516 (2002).

Ingvar Lindgren, Sten Salomonson, Bj'f6rn 'c5s'e9n, and Ann-Marie M'e5rtensson-Pendrill
Quasi-Degeneracy in Bound-State QED. Fine Structure of Heliumlike Ions. Invited talk: Workshop on Electromagnetic Probes of Fundamental Physics, Erice, Sicily, October 16-21, (2001) Photo

Ingvar Lindgren, Björn Åsén, Sten Salomonson, and Ann-Marie Mårtensson-Pendrill
QED Procedure applied to the Quasi-degenerate Fine-Structure Levels of the He-like Ions
Physical Review A 64, 062505 (2001).

Ingvar Lindgren, Ann-Marie Mårtensson-Pendrill, Sten Salomonson and Björn Åsén
Treatment of Atomic Quasi-Degeneracy in Bound-State QED. Application to the 1s2p States of He-Like Ions.
Invited talk: Workshop on Quantum Electrodynamics and Physics of the Vacuum: QED 2000, Trieste, Italy, October (2000)
AIP Conf. Proceedings 564, 131 (2001)

Ingvar Lindgren
Can MBPT and QED be merged in a systematic way? Invited paper: Special issue celebrating the 70'th birthday of Charlotte Froese-Fischer, Mol. Phys., 98, 1159-1174, 2000.

Ingvar Lindgren
Many-Body Perturbation Theory (Overhead). Invited talk: Workshop on Relativistic Problems in Quantum Chemistry. Banz, Germany, April 2000

T. Beier and I. Lindgren and H. Persson and S. Salomonson and P. Sunnergren and H. Häffner and N. Hermanspahn
g-j factor of an electron bound in a hydrogenlike ion, Phys. Rev. A 62, 32510.1-31, 2000.

Ingvar Lindgren
Highly Charged Ions and Test of QED. Invited talk: First Workshop on Frontier Tests of Quantum Electrodynamics and Physics of the Vacuum: QED1998, Sandansky, Bulgaria, June 1998

Ingvar Lindgren
QED in Strong Nuclear Fields. Invited talk: Conference on Highly Charged Ions, Bensheim, Germany, September 1998
Physica Scripta T 80, 133-40 (1999).

Ingvar Lindgren, Hans Persson, Sten Salomonson, and Per Sunnergren.
Analysis of the electron self-energy for tightly bound electrons, Physical Review A 58, 1001-15 (1998).

Per Sunnergren, Hans Persson, Sten Salomonson, Stefan Schneider, Ingvar Lindgren, and Gerhard Soff.
Radiative corrections to the hyperfine-structure splitting of hydrogenlike systems
Physical Review A 58, 1055-69 (1998).

Ingvar Lindgren
Electron correlation and quantum electrodynamics. Invited talk: Conference on 50 years of electron correlation, Cedar Key, Florida, June, 1997, Molecular Physics 94, 19-28 (1998).

Hans Persson, Sten Salomonson, Per Sunnergren, and Ingvar Lindgren
Radiative corrections to the electron g-factor in H-like ions, Physical Review A 56, R2499-2502 (1997).

H'e5kan Warston, Ingvar Lindgren and Sten Salomonson
Green's-function approach to the atomic many-body calculations with application to the ground state in alkali-metal atoms
Physical Review A 55, 2757-2570 (1997).

Sten Salomonson, H'e5kan Warston, and Ingvar Lindgren
Many-body calculations of the electron affinity for Ca and Sr, Physical Review Letters 76, 3092-3095(1997).

Ingvar Lindgren, Hans Persson, Sten Salomonson and Per Sunnergren
QED effects in few-electron high-Z systems. Invited plenary talk: International Conference on Atomic Physics, Zeeman-effect Cenenary (ZICAP), Amsterdam, 1996

Hans Persson, Sten Salomonson, Per Sunnergren, and Ingvar Lindgren
Two-electron Lamb-Shift Calculations on Heliumlike Ions, Physical Review Lett 76, 204-207 (1996).

Ingvar Lindgren, Hans Persson, Sten Salomonson, and Leonti Labzowsky
Full QED calculations of two-photon exchange for heliumlike systems: Analysis in the Coulomb and Feynman gauges
Physical Review A 51, 1167-1195 (1995).

Ann-Marie Mårtensson-Pendrill, Ingvar Lindgren, Eva Lindroth, Sten Salomonson and Don Staudte
Convergence of relativistic perturbation theory for the 1s2p states in low-Z heliumlike systems
Physical Review A 51, 3630-3635 (1995).

A.Ynnerman, J.James, I.Lindgren, H.Persson and S.Salomonson
Many-body calculation of the 2p1/2,3/2-2s1/2 transition energies in Li-like ions 238U
Physical Review A 50, 4671-4678 (1994).

Ingvar Lindgren, Hans Persson, Sten Salomonson, and Anders Ynnerman
Bound-state self-energy calculation using partial-wave renormalization
Physical Review A 47, R4555-4558 (1993).

Hans Persson, Ingvar Lindgren, Sten Salomonson, and Per Sunnergren
Accurate vacuum-polarization calculations, Physical Review A 48, 2772-2778 (1993).

Ingvar Lindgren
Hermitian formulation of the coupled-cluster approach, Journal of Physics B 24, 1143-1159 (1991).

Ingvar Lindgren
Gauge dependence of interelectronic potentials, Journal of Physics B 23, 1085-1093 (1991).

Ingvar Lindgren
Accurate many-body calculations on the lowest 2S and 2P states of the lithium atom
Physical Review A 31, 1273-1286 (1985).

Ingvar Lindgren
Coupled-Cluster Appoach to the Many-Body Perturbation Theory for Open-Shell Systems
Int. Journal of Quant. Chem S12, 33-58 (1978).

Sten Garpman, Ingvar Lindgren, Johannes Lindgren, and John Morrison
Calculation of the hyperfine interaction using an effective-operator form of many-body theory
Physical Review A 11, 758-781 (1975).

Ingvar Lindgren
The Rayleigh-Schr_dinger perturbation and the linked-diagram theorem for a multi-configurational model space
Journal of Physics B 7, 2441-2470 (1974).

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