The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Essentials of k-essence
Open accessAbstract
We recently introduced the concept of ``k-essence'' as a dynamical solution for explaining naturally why the universe has entered an epoch of accelerated expansion at a late stage of its evolution. The solution avoids fine-tuning of parameters and anthropic arguments. Instead, k-essence is based on the idea of a dynamical attractor solution which causes it to act as a cosmological constant only at the onset of matter domination. Consequently, k-essence overtakes the matter density and induces cosmic acceleration at about the present epoch. In this paper, we present the basic theory of k-essence and dynamical attractors based on evolving scalar fields with nonlinear kinetic energy terms in the action. We present guidelines for constructing concrete examples and show that there are two classes of solutions, one in which cosmic acceleration continues forever and one in which the acceleration has finite duration.
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Cites
Wald, R. M. (1984) · doi:10.7208/chicago/9780226870373.001.0001 · Cited by 7,188
Cosmological consequences of a rolling homogeneous scalar field
Ratra, B., & Peebles, P. J. E. (1988) · Physical Review D · doi:10.1103/physrevd.37.3406 · Cited by 4,310
Armendáriz-Picón, C., Damour, T., & Mukhanov, V. (1999) · Physics Letters B · doi:10.1016/s0370-2693(99)00603-6 · Cited by 1,846
Self-citationPrimordial nucleosynthesis: theory and observations
Olive, K. A., Steigman, G., & Walker, T. P. (2000) · Physics Reports · doi:10.1016/s0370-1573(00)00031-4 · Cited by 448
Cited by
Harko, T., Lobo, F. S. N., Nojiri, S., & Odintsov, S. D. (2011) · Physical Review D · doi:10.1103/physrevd.84.024020 · Cited by 2,772
Bamba, K., Capozziello, S., Nojiri, S., & Odintsov, S. D. (2012) · Astrophysics and Space Science · doi:10.1007/s10509-012-1181-8 · Cited by 2,387
Recent progress and new challenges in isospin physics with heavy-ion reactions
LI, B., CHEN, L., & KO, C. (2008) · Physics Reports · doi:10.1016/j.physrep.2008.04.005 · Cited by 1,314
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
From k -essence to generalized Galileons
Deffayet, C., Gao, X., Steer, D. A., & Zahariade, G. (2011) · Physical Review D · doi:10.1103/physrevd.84.064039 · Cited by 1,105
Metadata
- Authors
- Armendariz-Picon, C., Mukhanov, V., & Steinhardt, P. J.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2001-04-24
- Volume
- 63
- Issue
- 10
- ISSN
- 0556-2821 (ISSN-L)
- 1089-4918
- OpenAlex
- W2100367618
- Cited by
- 1,840
- References
- 4
- FWCI
- 18.73
- Type
- journal article
- Language
- en
- Open access
- green
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