The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Cosmological super-bounce
Open accessAbstract
We study a model for a nonsingular cosmic bounce in $\mathcal{N}=1$ supergravity, based on supergravity versions of the ghost condensate and cubic Galileon scalar field theories. The bounce is preceded by an ekpyrotic contracting phase, which prevents the growth of anisotropies in the approach to the bounce and allows for the generation of scale-invariant density perturbations that carry over into the expanding phase of the Universe. We present the conditions required for the bounce to be free of ghost excitations, as well as the tunings that are necessary in order for the model to be in agreement with cosmological observations. All of these conditions can be met. Our model thus provides a proof-of-principle that nonsingular bounces are viable in supergravity, despite the fact that during the bounce the null energy condition is violated.
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Cites
Heterotic and Type I string dynamics from eleven dimensions
Hořava, P., & Witten, E. (1996) · Nuclear Physics B · doi:10.1016/0550-3213(95)00621-4 · Cited by 1,984
Galileon as a local modification of gravity
Nicolis, A., Rattazzi, R., & Trincherini, E. (2009) · Physical Review D · doi:10.1103/physrevd.79.064036 · Cited by 1,863
Cosmic evolution in a cyclic universe
Steinhardt, P. J., & Turok, N. (2002) · Physical Review D · doi:10.1103/physrevd.65.126003 · Cited by 813
Towards a nonsingular bouncing cosmology
Cai, Y.-F., Easson, D. A., & Brandenberger, R. (2012) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2012/08/020 · Cited by 439
Ekpyrotic and Cyclic Cosmology
Lehners, J.-L. (2008) · Physics Reports · doi:10.1016/j.physrep.2008.06.001 · Cited by 381
Self-citationQiu, T., Evslin, J., Cai, Y.-F., Li, M., & Zhang, X. (2011) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2011/10/036 · Cited by 206
Khoury, J., Lehners, J.-L., & Ovrut, B. A. (2011) · Physical Review D · doi:10.1103/physrevd.84.043521 · Cited by 86
Self-citationEasson, D. A., Sawicki, I., & Vikman, A. (2013) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2013/07/014 · Cited by 76
Cited by
Modified gravity theories on a nutshell: Inflation, bounce and late-time evolution
Nojiri, S., Odintsov, S. D., & Oikonomou, V. K. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.06.001 · Cited by 2,734
Beyond the cosmological standard model
Joyce, A., Jain, B., Khoury, J., & Trodden, M. (2015) · Physics Reports · doi:10.1016/j.physrep.2014.12.002 · Cited by 1,231
Teleparallel gravity: from theory to cosmology
Bahamonde, S., Dialektopoulos, K. F., Escamilla-Rivera, C., Farrugia, G., Gakis, V., Hendry, M., Hohmann, M., Levi Said, J., Mifsud, J., & Di Valentino, E. (2023) · Reports on Progress in Physics · doi:10.1088/1361-6633/ac9cef · Cited by 503
Spinor driven cosmic bounces and their cosmological perturbations
Farnsworth, S., Lehners, J.-L., & Qiu, T. (2017) · Physical Review D · doi:10.1103/physrevd.96.083530 · Cited by 16
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Metadata
- Authors
- Koehn, M., Lehners, J.-L., & Ovrut, B. A.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2014-07-03
- Volume
- 90
- Issue
- 2
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2097742914
- Cited by
- 160
- References
- 8
- FWCI
- 13.28
- Type
- journal article
- Language
- en
- Open access
- green
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
