Soft theorems in maximally supersymmetric theories

Liu, Zhengwen

doi:10.1140/epjc/s10052-015-3304-1

Cited by 23 publications

(19 citation statements)

References 133 publications

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“…A complete classification of all possible soft theorems at various orders of the soft expansion has not appeared, although some discussion of it exists [79,80]. New soft theorems at various orders have recently been discovered in nonabelian gauge theories [20,77,81,82], supersymmetric theories [83][84][85], nonlinear sigma models [86], string theories [76,[87][88][89][90][91][92][93], and in other contexts [94][95][96][97][98]. Interesting universal structures are known for limits when two or more external particles are taken to be soft.…”

Section: Echoing Trianglesmentioning

confidence: 99%

Lectures on the Infrared Structure of Gravity and Gauge Theory

Strominger¹

2018

242

451

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This is a redacted transcript of a course given by the author at Harvard in spring semester 2016. It contains a pedagogical overview of recent developments connecting the subjects of soft theorems, the memory effect and asymptotic symmetries in fourdimensional QED, nonabelian gauge theory and gravity with applications to black holes. The lectures may be viewed online at https://goo.gl/3DJdOr. Please send typos or corrections to strominger@physics.harvard.edu. S 2 * F = Σ * j ∈ Z .(2.1.5)

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Section: Echoing Trianglesmentioning

confidence: 99%

Lectures on the Infrared Structure of Gravity and Gauge Theory

Strominger¹

2018

242

451

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“…In the last equation we employ the usual bracket notation, see, e.g., [40]. Then S ψ + i may be written as [s,i] x,i s,i x,s , compare [41]. Thus the positive helicity gravitino soft limit is the combination of a helicity lowering supersymmetry transformation and the multiplication of an angle dependent factor S ψ + i [26].…”

Section: Gravitino Soft Factormentioning

confidence: 99%

Residual Local Supersymmetry and the Soft Gravitino

Avery

Schwab

2016

Phys. Rev. Lett.

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We show that there exists an infinite tower of fermionic symmetries in pure d = 4, N = 1 supergravity on an asymptotically flat background. The Ward identities associated with these symmetries are equivalent to the soft limit of the gravitino and to the statement of supersymmetry at every angle. Additionally, we show that these charges commute into charges associated with the (unextended) BMS group, providing a supersymmetrization of the BMS translations.

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“…In this note, we study a matter coupled non-Abelian gauge theory. The reason for coupling matter is to have a consistent investigation into both the leading and subleading soft gluon theorem, while the tree-level sub-leading soft factor vanishes in pure Yang-Mills theory [36] under a certain prescription in which one solves the momentum conservation of the hard gluons according to the cyclic order in partial amplitudes (see also a supersymmetric extension [37]). Our results show that the leading soft gluon theorem is nothing but the Ward identity for asymptotic symmetries of the matter coupled non-Abelian gauge theory.…”

Section: Introductionmentioning

confidence: 99%