# Many-body perturbation theories in modern quantum chemistry and nuclear physics

**26-30 ^{th} March PROGRAM **

Organizers: A. Tichai (CEA, ESNT, contact), E. Giner (Max Planck Institute, Stuttgart), T. Duguet (CEA, DPhN-contact)

The **goals of the workshop **are to:

**1. **educate nuclear physicists about the relevance of MBPT methods in modern quantum many-body calculations,

**2.** exchange ideas regarding state-of-the-art MBPT methods between quantum chemists and nuclear physicists,

**3.** identify the systems, observables and situations for which perturbative methods are appropriate,

**4. **discuss the merits and the efficiency of the various strategies to treat near-degenerate and degenerate systems via perturbative methods.

**Exposés -TALKS- Invited speakers**

**PROGRAM**

* *

**Introductory lectures on many-body perturbation theories (MBPT)**

**1.** M. Nooijen, Princeton University

*Introduction to the single reference many body perturbation theory and its diagrammatic representation*

**2.** D. Cremer, Southern Methodist University

*Historical and modern trends in many-body perturbation theory calculations*

**3.** R. Roth, T. U. Darmstadt

*Nuclear interactions and many-body perturbation theory: convergence, accuracy and sensitivity*

**4. **C. Angeli, University of Ferrara

*Basics of multi-reference many-body perturbation theories*

**5. **T. Duguet, CEA/Saclay

*Basics of symmetry broken and restored many-body perturbation theory*

**Talks**

**1. Application of MBPT to closed-shell systems**

+ K. Hebeler, T. U. Darmstadt

*Many-body perturbation theory calculations of infinite nuclear matter*

+ F. R. Xu, Peking University

*Many-body perturbation theory calculations of closed-shell nuclei*

+ W. Klopper, Karlsruhe Institute of Technology

*Explicitly correlated Møller-Plesset perturbation theory*

+ P. Piecuch, Michigan State University

*Perturbative corrections to non-perturbative methods*

+ F. Hummel, Vienna University

*Observable calculation in zero and finite-temperature Many-body perturbation theory*

**2. Multi-reference perturbation theories**

+ A. Tichai, CEA, ESNT

*Multi-configuration perturbation theory for open-shell nuclei*

+ E. Giner, Max Planck Institute

*A Jeziorski-Monkhorst fully uncontracted multi-Reference perturbative treatment*

+ P. Arthuis, CEA/Saclay

*Bogoliubov many-body perturbation theory for open-shell nuclei*

+ I. Lindgren, University of Gothenburg

*Fully covariant many-body perturbation theory*

+ D. Cremer, Southern Methodist University

*Low-order many-body perturbation theory calculations for very large molecules*

+ F. Neese, Max Planck Institute

*Explicitly correlated NEVPT2*

**3. Resummation of perturbation series**

+ O. Costin, Ohio State University

*Different methods to turn a divergent series into a convergent one*

+ J. Toulouse, Jussieu University

*Direct ring coupled cluster with range separated electronic interaction*

**4. Computational advances in MBPT**

+ V. Khoromskaia, Max Planck Institute

*MBPT2 energy correction using tensor factorization of the grid-based two-electron integrals*

+ C. Ochsenfeld, Munich University

*Perspectives on correlated linear-scaling methods*

*Retour accueil ESNT** *__Back to the ESNT page__

*Création-contact Web ESNT : Valérie Lapoux*