Interacting quintessence
نویسندگان
چکیده
منابع مشابه
Interacting Quintessence
We demonstrate that a suitable coupling between a quintessence scalar field and a pressureless cold dark matter (CDM) fluid leads to a constant ratio of the energy densities of both components which is compatible with an accelerated expansion of the Universe. PACS number: 98.80.Hw
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The Standard Cosmological Model (SCM) can only describe decelerated universe models and so cannot reproduce the results coming from the recent type Ia supernovae observations upto about z ∼ 1 [1] which favour an accelerated current universe. But as the SCM can give a satisfactory explanation to other observational properties of the present universe (e.g., primordial nucleosynthesis, extragalact...
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This case report looks at a case of traumatic avulsion and subsequent apexification of a maxillary permanent incisor of a 6-year-old boy and a 10-year follow-up is reported. Treatment included apexification of the tooth with incomplete root formation using mineral trioxide aggregate and restoration of the immature root with a zirconia post and a coronal composite restoration. At the 10-year fol...
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In the present case report, a ra re congenital fistula of the accessory parotid gland is discussed, including aetiology, methods and imaging for diagnosis and treatment options.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2001
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)01174-1