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Complex field as inflaton and quintessence
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abstract
We investigate cosmology with complex scalar field. It is shown that such models can describe two stages of inflation and the oscillatory regime. Thus we don't need both quintessence and $\Lambda$-term. It is enough to have single complex field to obtain both inflation and present accelerated universe. If the present accelerated expansion was created by the complex field then universe must escape eternal acceleration. Besides, we will show that cosmological equations with complex field admit stationary solution without any cosmological constant.
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Cited by 1 Pith paper
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Complex Inflaton Potentials with Nonminimal Coupling: Robust Inflation and Geometric Reheating
A complex-scalar inflation model with a non-Hermitian imaginary potential claims geometric reheating, but the reheating evidence is internally contradictory and the CMB predictions reduce to fitted α-attractor results.
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