Matter Gravitino Genomics
Department of Physics, Brown University, Box 1843, 182 Hope Street, Providence, RI 02912, USA
Author to whom correspondence should be addressed.
Received: 21 December 2018 / Revised: 21 January 2019 / Accepted: 6 February 2019 / Published: 13 February 2019
Adinkras are graphs that encode a supersymmetric representation’s transformation laws that have been reduced to one dimension, that of time. A goal of the supersymmetry “genomics” project is to classify all 4D,
off-shell supermultiplets in terms of their adinkras. In previous works, the genomics project uncovered two fundamental isomer adinkras, the cis- and trans-adinkras, into which all multiplets investigated to date can be decomposed. The number of cis- and trans-adinkras describing a given multiplet define the isomer-equivalence class to which the multiplet belongs. A further refining classification is that of a supersymmetric multiplet’s holoraumy: the commutator of the supercharges acting on the representation. The one-dimensionally reduced, matrix representation of a multiplet’s holoraumy defines the multiplet’s holoraumy-equivalence class. Together, a multiplet’s isomer-equivalence and holoraumy-equivalence classes are two of the main characteristics used to distinguish the adinkras associated with different supersymmetry multiplets in higher dimensions. This paper focuses on two matter gravitino formulations, each with 20 bosonic and 20 fermionic off-shell degrees of freedom, analyzes them in terms of their isomer- and holoraumy-equivalence classes, and compares with non-minimal supergravity which is also a
multiplet. This analysis fills a missing piece in the supersymmetry genomics project, as now the isomer-equivalence and holoraumy-equivalence for representations up to spin two in component fields have been analyzed for 4D,
supersymmetry. To handle the calculations of this research effort, we have used the Mathematica
software package called Adinkra.m
. This package is open-source and available for download at a GitHub
Repository. Data files associated with this paper are also published open-source at a Data Repository also on GitHub
This is an open access article distributed under the Creative Commons Attribution License
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style
Mak, S.-N.H.; Stiffler, K. 4D,
Matter Gravitino Genomics. Symmetry 2019, 11, 217.
Mak S-NH, Stiffler K. 4D,
Matter Gravitino Genomics. Symmetry. 2019; 11(2):217.
Mak, S.-N. H.; Stiffler, Kory. 2019. "4D,
Matter Gravitino Genomics." Symmetry 11, no. 2: 217.
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