# A fine tuning free resolution of the cosmological constant problem

@inproceedings{Alexander2007AFT, title={A fine tuning free resolution of the cosmological constant problem}, author={Stephon H. S. Alexander and Deepak Vaid}, year={2007} }

In a recent paper we discovered that a fermionic condensate is formed from gravitational interactions due to the covariant coupling of fermions in the presence of a torsion‐fermion contact interaction.The condensate gap gives a negative contribution to the bare cosmological constant. In this letter, we show that the cosmological constant problem can be solved without fine tuning of the bare cosmological constant. We demonstrate how a universe with a large initial cosmological constant undergoes…

## 11 Citations

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### Non-Gaussianity from Compositeness

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By assuming the field seeding the curvature perturbations $ \zeta $ is a dynamically arising condensate, we are able to derive the relation $ f_{NL} ^2 \simeq 10^8 H / M_c $ between the…

### The Spectral Action for Dirac Operators with Skew-Symmetric Torsion

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We derive a formula for the gravitational part of the spectral action for Dirac operators on 4-dimensional manifolds with totally anti-symmetric torsion. We find that the torsion becomes dynamical…

### ESI The Erwin Schrödinger International Boltzmanngasse 9 Institute for Mathematical Physics A-1090 Wien , Austria Canonical Gravity with Fermions

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Canonical gravity in real Ashtekar–Barbero variables is generalized to allow for fermionic matter. The resulting torsion changes several expressions in Holst's original vacuum analysis, which are…

### CMB: A Look Inside the Inflaton

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We show that if the field seeding the formation of the cosmic structures is a dynamically arising bosonic condensate, the features we observe in the CMB might be interpreted as a manifestation of its…

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### * Electronic address: stephon@slac

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