The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.
Cosmology with tachyon field as dark energy
Open accessAbstract
We present a detailed study of cosmological effects of homogeneous tachyon matter coexisting with nonrelativistic matter and radiation, concentrating on the inverse square potential and the exponential potential for the tachyonic scalar field. A distinguishing feature of these models (compared to other cosmological models) is that the matter density parameter and the density parameter for tachyons remain comparable even in the matter dominated phase. For the exponential potential, the solutions have an accelerating phase, followed by a phase with $a(t)\ensuremath{\propto}{t}^{2/3}$ as $\stackrel{\ensuremath{\rightarrow}}{t}\ensuremath{\infty}.$ This eliminates the future event horizon present in cold dark matter models with a cosmological constant $(\ensuremath{\Lambda}\mathrm{CDM})$ and is an attractive feature from the string theory perspective. A comparison with supernova type Ia data shows that for both the potentials there exists a range of models in which the universe undergoes an accelerated expansion at low redshifts which are also consistent with the requirements of structure formation. They do require fine-tuning of parameters but not any more than in the case of $\ensuremath{\Lambda}\mathrm{CDM}$ models or quintessence models.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Measurements of Ω and Λ from 42 High‐Redshift Supernovae
Perlmutter, S., Aldering, G., Goldhaber, G., Knop, R. A., Nugent, P., Castro, P. G., Deustua, S., Fabbro, S., Goobar, A., Groom, D. E., et al. (1999) · The Astrophysical Journal · doi:10.1086/307221 · Cited by 18,062
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
Cosmology and the fate of dilatation symmetry
Wetterich, C. (1988) · Nuclear Physics B · doi:10.1016/0550-3213(88)90193-9 · Cited by 2,689
Quintessence, Cosmic Coincidence, and the Cosmological Constant
Zlatev, I., Wang, L., & Steinhardt, P. J. (1999) · Physical Review Letters · doi:10.1103/physrevlett.82.896 · Cited by 2,674
Discovery of a supernova explosion at half the age of the Universe
Perlmutter, S., Aldering, G., Valle, M. D., Deustua, S., Ellis, R. S., Fabbro, S., Fruchter, A., Goldhaber, G., Groom, D. E., Hook, I. M., et al. (1998) · Nature · doi:10.1038/34124 · Cited by 2,544
Armendáriz-Picón, C., Damour, T., & Mukhanov, V. (1999) · Physics Letters B · doi:10.1016/s0370-2693(99)00603-6 · Cited by 1,846
Kinetically driven quintessence
Chiba, T., Okabe, T., & Yamaguchi, M. (2000) · Physical Review D · doi:10.1103/physrevd.62.023511 · Cited by 1,434
Sen, A. (2002) · Journal of High Energy Physics · doi:10.1088/1126-6708/2002/04/048 · Cited by 1,213
Sen, A. (2002) · Journal of High Energy Physics · doi:10.1088/1126-6708/2002/07/065 · Cited by 1,056
Accelerated expansion of the universe driven by tachyonic matter
Padmanabhan, T. (2002) · Physical Review D · doi:10.1103/physrevd.66.021301 · Cited by 997
Self-citation
Cited by
Reconciling dark energy models withf(R)theories
Capozziello, S., Cardone, V. F., & Troisi, A. (2005) · Physical Review D · doi:10.1103/physrevd.71.043503 · Cited by 527
Cosmological dynamics of a phantom field
Singh, P., Sami, M., & Dadhich, N. (2003) · Physical Review D · doi:10.1103/physrevd.68.023522 · Cited by 516
WMAP constraints on low redshift evolution of dark energy
Jassal, H. K., Bagla, J. S., & Padmanabhan, T. (2005) · Monthly Notices of the Royal Astronomical Society: Letters · doi:10.1111/j.1745-3933.2005.08577.x · Cited by 400
Self-citationObservational constraints on dark energy with generalized equations of state
Capozziello, S., Cardone, V. F., Elizalde, E., Nojiri, S., & Odintsov, S. D. (2006) · Physical Review D · doi:10.1103/physrevd.73.043512 · Cited by 391
On the spherical collapse model in dark energy cosmologies
Mota, D. F., & van de Bruck, C. (2004) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20041090 · Cited by 264
Metadata
- Authors
- Bagla, J. S., Jassal, H. K., & Padmanabhan, T.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2003-03-14
- Volume
- 67
- Issue
- 6
- Pages
- 63504-63504
- ISSN
- 0556-2821 (ISSN-L)
- 1089-4918
- OpenAlex
- W2160433764
- Cited by
- 554
- References
- 41
- FWCI
- 21.65
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Cosmology with tachyon field as dark energy. https://app.cochat.ai/papers/10.1103/physrevd.67.063504
- The paper
- Bagla, J. S., Jassal, H. K., & Padmanabhan, T. (2003). Cosmology with tachyon field as dark energy. Physical Review D. https://doi.org/10.1103/physrevd.67.063504
Data sources
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.
