Einstein-Cartan gravity with scalar-fermion interactions

• Authors: Olga Razina , Yerlan Myrzakulov , Nurzhan Serikbayev , Gulgasyl Nugmanova , Ratbay Myrzakulov
• Languages of publication: EN

Abstracts

EN

In this paper, we have considered the g-essence and its particular cases, k-essence and f-essence, within the framework of the Einstein-Cartan theory. We have shown that a single fermionic field can give rise to the accelerated expansion within the Einstein-Cartan theory. The exact analytical solution of the Einstein-Cartan-Dirac equations is found. This solution describes the accelerated expansion of the Universe with the equation of state parameter w = −1 as in the case of ΛCDM model.

Keywords

EN

Einstein-Cartan gravity; G-essence; K-essence; F-essence

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 1
• Pages: 47-50

Dates

published

1 - 2 - 2012

online

3 - 12 - 2011

Contributors

author

Olga Razina

• Eurasian International Center for Theoretical Physics, Eurasian National University, Astana, 010008, Kazakhstan

author

Yerlan Myrzakulov

• Eurasian International Center for Theoretical Physics, Eurasian National University, Astana, 010008, Kazakhstan

author

Nurzhan Serikbayev

• Eurasian International Center for Theoretical Physics, Eurasian National University, Astana, 010008, Kazakhstan

author

Gulgasyl Nugmanova

• Eurasian International Center for Theoretical Physics, Eurasian National University, Astana, 010008, Kazakhstan

author

Ratbay Myrzakulov

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Identifiers

DOI

10.2478/s11534-011-0102-8