# Hypermagnetic gyrotropy, inflation and the baryon asymmetry of the Universe

@article{Giovannini2015HypermagneticGI, title={Hypermagnetic gyrotropy, inflation and the baryon asymmetry of the Universe}, author={Massimo Giovannini}, journal={Physical Review D}, year={2015}, volume={92}, pages={121301} }

We investigate the production of the hypermagnetic gyrotropy when the electric and magnetic gauge couplings evolve at different rates, as it happens in the relativistic theory of the van der Waals forces. If a pseudoscalar interaction breaks the duality symmetry of the corresponding equations, the gyrotropic configurations of the hypermagnetic fields can be amplified from the vacuum during an inflationary stage of expansion. After charting the parameter space of the model in terms of the rates…

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## References

SHOWING 1-10 OF 17 REFERENCES

Ann

- Psychology
- 2005

Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixed…

Phys

- Rev. Lett. 80, 22 (1998); Phys. Rev. D 57, 2186 (1998); M. Giovannini, Phys. Rev. D 61, 063502 (2000); Phys. Rev. D 61, 063004
- 2000

Phys

- Rev. D 88, 083533 (2013); Phys. Rev. D 89, 063512 (2014); Phys. Rev. D 92, 043521
- 2015

Phys

- Rev. Lett. 54, 970 (1985); V. A. Rubakov and A. N. Tavkhelidze, Phys. Lett. 165B, 109 (1985); V. A. Rubakov, Prog. Theor. Phys. 75, 366 (1986); V. A. Matveev, V. A. Rubakov, A. N. Tavkhelidze, and V. F. Tokarev, Nucl. Phys. B282, 700
- 1987

Pis’ma Zh

- Eksp. Teor. Fiz. 5, 32 (1967) [JETP Lett. 5, 24
- 1967

Phys

- Rev. A 2, 2395 (1970); Phys. Rev. D 20, 1717
- 1979

Phys

- Rev. Lett. 84, 3756 (2000); Phys. Rev. D 62, 103508 (2000); J. B. Rehm and K. Jedamzik, Phys. Rev. D 63, 043509 (2001); K. Bamba, Phys. Rev. D 74, 123504 (2006); K. Bamba, C. Q. Geng, and S. H. Ho, Phys. Lett. B 664, 154 (2008); V. B. Semikoz, D. D. Sokoloff, and J. W. F. Valle, Phys. Rev. D 80, 08
- 2009

Annu

- Rev. Nucl. Part. Sci. 43, 27 (1993); W. Buchmuller, R. D. Peccei, and T. Yanagida, Annu. Rev. Nucl. Part. Sci. 55, 311
- 2005

Zh . Eksp . Teor . Fiz . 53 , 1806 ( 1967 ) [ Sov

- Prog . Theor . Phys .
- 1986

) . [ 7 ] H . Kurki - Suonio and E . Sihvola

- Int . J . Mod . Phys . D