13 papers found.

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Abstract Local terms in the Operator Product Expansion in Superconformal Theories with extended supersymmetry are identified. Assuming a factorized structure for these terms their contributions are discussed.

We formulate off-shell \( \mathcal{N} \) = 1 superconformal higher spin multiplets in four spacetime dimensions and briefly discuss their coupling to conformal supergravity. As an example, we explicitly work out the coupling of the superconformal gravitino multiplet to conformal supergravity. The corresponding action is super-Weyl invariant for arbitrary supergravity backgrounds...

colleagues from our institute for providing and translating Russian
and Vietnamese literature, namely Ekaterina Pikalov and Truong Van Thuong.
Author Contributions
Conceptualization: **Stefan** **Theisen**.
Data ... curation: **Stefan** **Theisen**.
Formal analysis: **Stefan** **Theisen**, Sonja Kleinertz.
Funding acquisition: **Stefan** **Theisen**.
Investigation: **Stefan** **Theisen**, Sarah H. Al-Jufaili.
Methodology: **Stefan** **Theisen**, Sarah H

Axions play a central role in inflationary model building and other cosmological applications. This is mainly due to their flat potential, which is protected by a global shift symmetry. However, quantum gravity is known to break global symmetries, the crucial effect in the present context being gravitational instantons or Giddings-Strominger wormholes. We attempt to quantify, as...

We use the Chern-Simons formulation of higher spin theories in three dimensions to study aspects of holographic W-gravity. Concepts which were useful in studies of pure bulk gravity theories, such as the Fefferman-Graham gauge and the residual gauge transformations, which induce Weyl transformations in the boundary theory and their higher spin generalizations, are reformulated in...

We develop a new off-shell formulation for six-dimensional conformal super-gravity obtained by gauging the 6D \( \mathcal{N} \) = (1, 0) superconformal algebra in superspace. This formulation is employed to construct two invariants for 6D \( \mathcal{N} \) = (1, 0) conformal super-gravity, which contain C 3 and C□C terms at the component level. Using a conformal supercurrent...

Given a conserved and traceless energy-momentum tensor and a conformal Killing vector, one obtains a conserved current. We generalise this construction to superconformal theories in three, four, five and six dimensions with various amounts of supersymmetry by working in the appropriate superspaces.

We study the implications of scale invariance in four-dimensional quantum field theories. Imposing unitarity, we find that infinitely many matrix elements vanish in a suitable kinematical configuration. This vanishing is a nontrivial necessary condition for conformality. We provide an argument why this is expected to be a sufficient condition as well, thereby linking scale and...

The two-point function of exactly marginal operators leads to a universal contribution to the trace anomaly in even dimensions. We study aspects of this trace anomaly, emphasizing its interpretation as a sigma model, whose target space \( \mathrm{\mathcal{M}} \) is the space of conformal field theories (a.k.a. the conformal manifold). When the underlying quantum field theory is...

We study four-dimensional heterotic flux vacua with N = 2 spacetime supersymmetry. A worldsheet perspective is used to clarify quantization conditions associated to the fluxes and the constraints these place on the moduli spaces of resulting compactifications. We propose that these vacua fit naturally in the context of heterotic/IIA duality as heterotic duals to compactifications...

In this study we analysed fecal bacterial communities and parasites of three important Indonesian fish species, Epinephelus fuscoguttatus, Epinephelus sexfasciatus and Atule mate. We then compared the biodiversity of bacterial communities and parasites of these three fish species collected in highly polluted Jakarta Bay with those collected in less polluted Indonesian areas of...

Matthias Blau
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**Stefan** **Theisen**
0
0
S. Theisen Max-Planck-Institut fr Gravitationsphysik, Albert-Einstein-Institut
, 14476 Golm,
Germany
We review the status of string theory as a quantum theory of