M.D. Pollock
Russian Academy of Sciences
7 Papers
59 Citations
M.D. Pollock is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Superstring theory & Heterotic string theory. The author has an hindex of 5, co-authored 7 publications. Previous affiliations of M.D. Pollock include Landau Institute for Theoretical Physics.
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Papers
Renormalization of the gravitational constant in the heterotic superstring theory
M.D. Pollock,M.D. Pollock +1 more
TL;DR: In this paper, the effect of higher-order terms for which n≥2 cannot be calculated precisely, because they are unknown, and by considering the effect in cosmology of the analogous renormalization of the coefficient of R 2, argue that they produce no substantial change, so that K−2≈K0−2.
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The non-invariance of the heterotic superstring four-action under the modular transformation
M.D. Pollock,M.D. Pollock +1 more
TL;DR: In this paper, it was shown that L acquires a dependence upon B r and hence is no longer invariant under the duality transformation, whereas B r is the radius squared of the internal space ds 2 in units of the Regge slope α′ provided that the axion B i is constant.
14
Determination of the superstring moduli from the higher-derivative terms
M.D. Pollock,M.D. Pollock +1 more
TL;DR: In this paper, it was shown that the higher-derivative terms R 2 and R 4 in the ten-action superstring four-action S give rise, via the corresponding dimensionally reduced terms R and R 2 in S, to contributions A r R E 2,B r −3 R and B r −2 R 2 to the potentials V (σA) and V(σB).
10
Emergence of classical space-time from the Planck era
M.D. Pollock,M.D. Pollock +1 more
TL;DR: In this article, the origin of Friedmann space-time is discussed in the context of the heterotic superstring theory, with simultaneous reference to the structure and symmetries of the internal space, taking into account the causality of the Planck era.
8
Do astronomical microlensing observations determine the mass of the gravitino
M.D. Pollock,M.D. Pollock +1 more
TL;DR: In this paper, the decay constant of the QCD axion, which couples only to the observable-sector gauge field Fij assuming gaugino condensation in the hidden sector, is f a = 1 2 (1+λ 2 ) 1/2 f A.
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