Symmetry breaking and symmetry preserving schemes

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May 13-17^th                                     PROGRAM     ProgramESNTsymmetry5May19.pdf

 

Symmetry breaking and symmetry preserving schemes : how to efficiently grasp collective correlations in mesoscopic many-body systems?

 

Organizers: J.P Ebran (CEA, DAM), T. Duguet (CEA DPhN), V. Somà (DPhN, contact) A. Tichai (ESNT, contact)

 

The goals of the workshop are:
1. To review the various state of the art approaches developed to tackle the many-body problem;
2. To put in vis-a-vis the symmetry-preserving and symmetry-unrestricted approaches;
3. To transfer the know-how of techniques specific to one or the other of the two strategies in order to build new hybrid approaches.

 

 

Exposés -TALKS- Invited speakers

 

Introductory Lectures

1. P. Palacios, Emergent symmetry breaking in finite systems: philosophical aspects

2. L. M. Robledo, UAM Madrid, Basic elements of group theory in quantum mechanics   LectureESNT_Robledo_I_13May19.pdf
3. L. M. Robledo, UAM Madrid, Fundamentals of symmetry breaking and restoration   LectureESNT_Robledo_II_13May19.pdf

4. T. Duguet, CEA-Saclay DPhN, Breaking and restoring symmetries beyond the mean-field.   TalkESNT_Duguet_13May19.pdf

 

Scientific talks

1. Energy density functional (EDF) and Shell-Model (SM) methods

 

• M. Bender, IPNL, State-of-the-art multi-reference EDF calculations. I. Odd systems    TalkESNT_Bender_14May19.pdf
• T. Rodriguez Frutos, UAM Madrid, State-of-the-art multi-reference EDF calculations. II. Shape and pairing fluctuations
• M. Bender, IPNL, Spuriousities in the multi-reference EDF formalism   TalkESNT_Bender_17May19.pdf
• N. Pillet, CEA DAM, Symmetry-conserving multi-particle/multi-hole calculations
• J.-P. Ebran, CEA DAM, Symmetry considerations in the relativistic EDF method
• C.W. Johnson, From the shell model to generator coordinates and back   TalkESNT_Johnson_15May19.pdf
• A. Görling, Symmetry in density functional theory   TalkESNT_Görling_15May19.pdf

 

2. Ab initio many-body methods

 

• H. Hergert, MSU,  Multi-reference in-medium similarity renormalization group theory   TalkESNT_Hergert_16May19.pdf
• C. Yannouleas, Symmetry breaking and restoration for ring-trapped ions and neutral atoms TalkESNT_Yannouleas_16May19.pdf
• M. Frosini, High-order Bogoliubov many-body perturbation theory   TalkESNT_Frosini_17May19.pdf
• U. Meißner, Nucleons on a Lattice: Symmetry Breaking & Restoration   TalkESNT_Meissner_17May19.pdf
• V. Somà, CEA Saclay, Particle-number breaking self-consistent Gorkov Green’s function calculations   TalkESNT_Soma_16May19.pdf
• M. Veis, Hartree-Fock and many-body perturbation theory for periodic helical systems
• A. Tichai, CEA-Saclay, ESNT, Particle-number-projected Bogoliubov many-body perturbation theory   TalkESNT_Tichai_14May19.pdf
• J. Ripoche, Univ. Paris-Saclay, Normal-ordering approximation in particle-number breaking theories   TalkESNT_Ripoche_14May19.pdf
• C. Robin, Single-particle relaxation effects from the multi-particle-multi-hole configuration mixing approach   TalkESNT_Robin_16May19.pdf

 

PROGRAM (updated, 5th May)

 

	Monday 13th			Tuesday 14th	Wed 15th	Thursday 16th	Friday 17th
9h30	Welcome
9h45	P. Palacios		9h30	M. Bender (I)	N. Pillet	C. Robin	M. Bender (I)M. Bender (II)
11h	Break		10h30	Break	Break	Break	Break
	L. Robledo (I)		11h	J. P. Ebran	C. Johnson	H. Hergert	U. Meißner*
12h45	Lunch		12h	LunchLunch	Lunch	Lunch	Lunch
14h15	L. Robledo (II)		14h	J. Ripoche	L. Rodriguez	V. Somà	M. Veis
15h30	Break		15h	Break	Break	Break	Break
16h	T. Duguet		15h30	A. Tichai	A. Gorling	C. Yannouleas	M. Frosini
17h30	End		16h30 18h	Discussions	Discussions	Discussions	End

 

 

*DPhN colloquium, see the abstract.

 

 

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