95 citations · 1k across the 42 of their papers we have counts for
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Natural orbitals for many-body expansion methods
J. Hoppe, A. Tichai, M. Heinz +2
The nuclear many-body problem for medium-mass systems is commonly addressed using wave-function expansion methods that build upon a second-quantized representation of many-body ope…
ADG: Automated generation and evaluation of many-body diagrams II. Particle-number projected Bogoliubov many-body perturbation theory
P. Arthuis, A. Tichai, J. Ripoche +1
We describe the second version (v2.0.0) of the code ADG that automatically (1) generates all valid off-diagonal Bogoliubov many-body perturbation theory diagrams at play in particl…
Zero-pairing limit of Hartree-Fock-Bogoliubov reference states
T. Duguet, B. Bally, A. Tichai
The variational Hartree-Fock-Bogoliubov (HFB) mean-field theory is the starting point of various (ab initio) many-body methods dedicated to superfluid systems. While taking the zer…
Symmetry reduction of tensor networks in many-body theory I. Automated symbolic evaluation of algebra
Alexander Tichai, Roland Wirth, Julien Ripoche +1
The ongoing progress in (nuclear) many-body theory is accompanied by an ever-rising increase in complexity of the underlying formalisms used to solve the stationary Schrödinger equ…
Bogoliubov many-body perturbation theory under constraint
Pepijn Demol, Mikael Frosini, Alexander Tichai +2
In order to solve the A-body Schrödinger equation both accurately and efficiently for open-shell nuclei, a novel many-body method coined as Bogoliubov many-body perturbation theory…
Many-body perturbation theories for finite nuclei
Alexander Tichai, Robert Roth, Thomas Duguet
In recent years many-body perturbation theory encountered a renaissance in the field of ab initio nuclear structure theory. In various applications it was shown that perturbation t…