De Sitter space and eternity
By A. Polyakov. 2007
291 citations recorded by the source corpus.
This paper explores infrared quantum effects in the de Sitter space. The notion of “eternal manifolds” is introduced and it is shown that in most cases the de Sitter space does not belong to this class. It is unstable under small perturbations which may cause a breakdown of the de Sitter symmetry. The de Sitter string sigma model is discussed. It is argued that the gauge theory at the complex coupling is dual to the matrix elements of vertex operators in the de Sitter space, taken between the Bunch–Davies vacuum and the “out” state without particles. The described infrared effects are likely to screen away the cosmological constant.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/853cf9096d85e25a710325e87ab48e47d5022f0b
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Citations in the corpus
- A Mellin space approach to cosmological correlators (2019, background): “3) by the analytic continuation z = −ηe± πi 2 and changing the sign of the metric [83].”
- Quantum compositeness of gravity: black holes, AdS and inflation (2013, background): “The quantum physics of de Sitter that we are uncovering could provide an answer to the issues raised in [51] and [52].”
- Semiclassical relations and IR effects in de Sitter and slow-roll space-times (2010, background): “For this reason these have been extensively discussed, with arguments ranging from the statement that they can be innocuously eliminated to the statement that they indicate a fundamental instability of de Sitter space causing the cosmological constant to relax to zero [1–7].”
- Decay of Vacuum Energy (2009, methodology): “I discussed it in the previous paper [1] , There are several possible choices for the massive propagators.”
- Quantum break-time of de Sitter (2017, background): “It would be interesting to understand whether there exists any connection between our concept of quantum break-time of de Sitter and other possible instabilities, such as, for example, the one claimed in [47, 48].”
- The Swampland: Introduction and Review (2019, background): “In [451], see [452] for a review, and also similarly in [453–455], it was argued that de Sitter space is unstable when coupled to an interacting quantum field theory.”
- Quantum exclusion of positive cosmological constant? (2014, result): “We must stress that we do not claim that quantum mechanical back reaction renormalizes or in some other way destabilizes , as this is the case in semi-classical studies [7, 8].”
- Testing modified gravity at cosmological distances with LISA standard sirens (2019, background): “[100], and several hints on non-trivial physics at large distances emerge for instance from the study of IR effects in de Sitter space [101–108].”
- Late-time structure of the Bunch-Davies de Sitter wavefunction (2014, background): “See [18–34] for an incomplete list of references on the topic of infrared issues in de Sitter space.”
- Infrared instability of the de Sitter space (2012, background): “The evolution of these numbers is governed by the collision integral and as noticed in [3] can be viewed as an IR analogue of the renormalization group.”
- On loops in inflation (2009, background): “In particular we will claim that contrary to what was reported in the literature [22, 27] the ζ two point function does not acquire any time dependence even in the case where the spectator σ fields have any form of stable potential 3.”