Academic literature on the topic 'Phantom scalar field'
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Journal articles on the topic "Phantom scalar field"
HASSAÏNE, MOKHTAR. "PHANTOM FIELD FROM CONFORMAL INVARIANCE." Modern Physics Letters A 22, no. 04 (February 10, 2007): 307–16. http://dx.doi.org/10.1142/s0217732307021093.
Full textDZHUNUSHALIEV, VLADIMIR, VLADIMIR FOLOMEEV, SHYNARAY MYRZAKUL, and RATBAY MYRZAKULOV. "PHANTOM THICK BRANE IN 5D BULK." Modern Physics Letters A 23, no. 33 (October 30, 2008): 2811–19. http://dx.doi.org/10.1142/s0217732308028296.
Full textZhang, Limei, Xiaoxiong Zeng, and Zhonghua Li. "AdS Black Hole with Phantom Scalar Field." Advances in High Energy Physics 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/4940187.
Full textChen, Xiu-Wu, Wei-Qiang Zheng, and Ji-Yan Chen. "Localization and mass spectra of bulk bosonic fields on de Sitter thick branes." International Journal of Modern Physics A 30, no. 26 (September 18, 2015): 1550151. http://dx.doi.org/10.1142/s0217751x15501511.
Full textANDRIANOV, ALEXANDER A., FRANCESCO CANNATA, and ALEXANDER Y. KAMENSHCHIK. "PHANTOM UNIVERSE FROM CPT SYMMETRIC QFT." International Journal of Modern Physics D 15, no. 08 (August 2006): 1299–310. http://dx.doi.org/10.1142/s021827180600911x.
Full textRUDRA, PRABIR. "EMERGENT UNIVERSE WITH EXOTIC MATTER IN LOOP QUANTUM COSMOLOGY, DGP BRANE-WORLD AND KALUZA–KLEIN COSMOLOGY." Modern Physics Letters A 27, no. 33 (October 24, 2012): 1250189. http://dx.doi.org/10.1142/s0217732312501891.
Full textZHANG, XIAO-FEI, HONG LI, YUN-SONG PIAO, and XINMIN ZHANG. "TWO-FIELD MODELS OF DARK ENERGY WITH EQUATION OF STATE ACROSS -1." Modern Physics Letters A 21, no. 03 (January 30, 2006): 231–41. http://dx.doi.org/10.1142/s0217732306018469.
Full textNOZARI, KOUROSH, and S. DAVOOD SADATIAN. "COMPARISON OF FRAMES: JORDAN VERSUS EINSTEIN FRAME FOR A NON-MINIMAL DARK ENERGY MODEL." Modern Physics Letters A 24, no. 38 (December 14, 2009): 3143–55. http://dx.doi.org/10.1142/s0217732309031053.
Full textCHAVES, MAX, and DOUGLAS SINGLETON. "PHANTOM ENERGY FROM GRADED ALGEBRAS." Modern Physics Letters A 22, no. 01 (January 10, 2007): 29–40. http://dx.doi.org/10.1142/s0217732307022372.
Full textEl-Nabulsi, Rami Ahmad. "Asymptotically Static Universe Dominated by Phantom Energy." Zeitschrift für Naturforschung A 70, no. 2 (February 1, 2015): 101–8. http://dx.doi.org/10.1515/zna-2014-0242.
Full textDissertations / Theses on the topic "Phantom scalar field"
CREMONA, FRANCESCO. "ON THE LINEAR INSTABILITY OF HIGHER DIMENSIONAL WORMHOLES SUPPORTED BY SELF-INTERACTING PHANTOM SCALAR FIELDS." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/820071.
Full textIn this thesis I deal with the linear stability analysis of static, spherically symmetric wormholes supported by phantom self-interacting scalar fields, in the framework of General Relativity with arbitrary spacetime dimension. In the previous literature, a gauge-invariant stability analysis of wormhole configurations often succeeds in decoupling the linearized field equations, yielding a wave-type master equation which, however, is typically singular where the radial coefficient of the metric has a critical point, that is, at the wormhole throat. In order to overcome this problem a regularization method has been proposed in previous works, which transforms the singular wave equation to a regular one; this method is usually referred to as “S-deformation” (and sometimes requires a partly numerical implementation, especially, in the case of scalar fields with nontrivial self-interaction). The first result of my work is the reduction of the linearized field equations to a completely regular, constrained wave system for two suitably defined gauge-invariant functions of the perturbations in the metric coefficients and in the scalar field; the second result is a strategy for decoupling this system, obtaining a single wave-type master equation for another gauge-invariant quantity. No step of this construction causes the appearing of singularities at the wormhole throat or elsewhere (provided that the unperturbed scalar field has no critical points, which occurs in many examples); therefore, it is not necessary to regularize a posteriori the master equation via the S-deformation method. This gauge-invariant and singularity-free formalism, which generalizes to arbitrary spacetime dimensions the approach of my paper [1], is then applied to some known static wormhole solutions (most, but not all of them considered in [1]). The most relevant application is a certain Anti-de Sitter (AdS) wormhole, whose linear stability analysis does not seem to have been performed previously by other authors; by using the present method, it is possible to derive a completely regular master equation describing the perturbations of the AdS wormhole and prove that the latter is actually linearly unstable, after providing a detailed analysis of the spectral properties of the Schrödinger type operator appearing in the master equation. A partial instability result is derived along the same lines for the analogous de Sitter (dS) wormhole, a technically more subtle case due to the presence of horizons. As a further application, I rederive in a singularity-free fashion the master equations for the perturbed Ellis-Bronnikov and Torii-Shinkai wormholes. As a supplement, the linear instability results for the AdS and for the Torii-Shinkai wormholes are also recovered using an alternative, singularity free but gauge-dependent method: in this case a regular master equation is derived for the perturbed radial coordinate, and the gauge-independence of the instability result is tested a posteriori. This alternative, gauge-dependent approach generalizes that introduced in my paper [2] for the reflection symmetric Ellis-Bronnikov wormhole. Let me also cite [3], from which I report some facts about the previously mentioned wormholes in absence of perturbations. BIBLIOGRAPHY: [1] F. Cremona, L. Pizzocchero, and O. Sarbach. Gauge-invariant spherical linear perturbations of wormholes in einstein gravity minimally coupled to a self-interacting phantom scalar field. Physical Review D, 101, 05 2020. [2] F. Cremona, F. Pirotta, and L. Pizzocchero. On the linear instability of the Ellis-Bronnikov-Morris-Thorne wormhole. Gen. Relativ. Gravitat., 51:19, 2019. [3] F. Cremona. Geodesic structure and linear instability of some wormholes. Proceeding for the conference: Domoschool 2019 (submitted).
Elizalde, Emilio, Shin'ichi Nojiri, Sergei D. Odintsov, Diego Sa'ez-Go'mez, and Valerio Faraoni. "Reconstructing the universe history, from inflation to acceleration, with phantom and canonical scalar fields." American Physical Society, 2008. http://hdl.handle.net/2237/11281.
Full textConference papers on the topic "Phantom scalar field"
González-Díaz, P. F. "The Cosmic Phantom Field." In PHI IN THE SKY: The Quest for Cosmological Scalar Fields. AIP, 2004. http://dx.doi.org/10.1063/1.1835187.
Full textNakonieczna, Anna, and Marek Rogatko. "Phantom collapse of electrically charged scalar field in dilaton gravity." In MULTIVERSE AND FUNDAMENTAL COSMOLOGY: Multicosmofun '12. AIP, 2013. http://dx.doi.org/10.1063/1.4791722.
Full textChew, Xiao Yan, Vladimir Dzhunushaliev, Vladimir Folomeev, Burkhard Kleihaus, and Jutta Kunz. "Rotating wormholes supported by a complex phantom scalar field with Mexican hat potential." In PROCEEDINGS OF THE 14TH ASIA-PACIFIC PHYSICS CONFERENCE. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0036986.
Full textLora-Clavijo, F. D., J. A. González, F. S. Guzmán, H. A. Morales-Tecotl, L. A. Urena-Lopez, R. Linares-Romero, and H. H. Garcia-Compean. "Behavior of Phantom Scalar Fields near Black Holes." In GRAVITATIONAL PHYSICS: TESTING GRAVITY FROM SUBMILLIMETER TO COSMIC: Proceedings of the VIII Mexican School on Gravitation and Mathematical Physics. AIP, 2010. http://dx.doi.org/10.1063/1.3473875.
Full textUrazalina, A., V. Dzhunushaliev, and A. Makhmudov. "Wormhole solutions in GR with two phantom scalar fields." In Twelfth Asia-Pacific International Conference on Gravitation, Astrophysics, and Cosmology. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814759816_0031.
Full textSERGIJENKO, OLGA, and BOHDAN NOVOSYADLYJ. "SCALAR FIELDS WITH BAROTROPIC EQUATION OF STATE: QUINTESSENCE VERSUS PHANTOM." In Proceedings of the MG13 Meeting on General Relativity. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814623995_0217.
Full textAnthony, Richard J., John Finnegan, and John P. Clark. "Phantom Cooling Effects on Rotor Blade Surface Heat Flux in a Transonic Full Scale 1+1/2 Stage Rotating Turbine." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15836.
Full textEcheverria, Esteban, and Chandrasekhar Thamire. "Development of an Ultrasound Hyperthermia Simulator for Therapeutic Applications." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64205.
Full textXue, Yabo, Zhenqiang Yao, De Cheng, Hong Shen, and Shengde Wang. "Surface Texture Effect on Momentum Transfer Behavior in Ultimate Taylor-Couette Flow." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37205.
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