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EPJ PLUS - Condensed Matter and Complex Systems

EPJ A Highlight - Automated symmetry adaption in nuclear many-body theory

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Published on 10 December 2020
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Symmetry reduction process of a prototypical many-body expression leading to an equivalent symmetry-reduced form. Recoupling coefficients arising from the AMC program are shown in red.

The extreme cost of solving the A-nucleon Schrödinger equation can be minimized by leveraging rotational symmetry and, thus, enable the computation of observables in heavy nuclei and/or with high precision.

The associated reduction process, which amounts to re-expressing the working equations in terms of rotationally-invariant objects, requires lengthy symbolic manipulations of elaborate algebraic identities.

For the first time, this involved process is automated by a powerful graph-theory-based tool, the AMC code, which condenses months of error-prone derivations into a simple computational task performed within seconds.

The AMC program tightens the gap for a full automation of the many-body workflow, thereby lowering the time required to build and test novel quantum many-body formalisms.

A. Tichai, R. Wirth, J. Ripoche and T. Duguet. Symmetry reduction of tensor networks in many-body theory. Eur. Phys. J. A 56, 272 (2020). https://doi.org/10.1140/epja/s10050-020-00233-6

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Editors-in-Chief
B. Fraboni and G. García López
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It is a great pleasure to receive your message regarding the acceptance of our manuscript for publication in EPJPlus. We deeply appreciate the quick review of the manuscript and sincerely thank you and others in the EPJP Editorial Office. We would also like to extend our appreciation to the referee for his positive review and his nice words.

Kourosh Afrousheh, Safat, Kuwait

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