https://doi.org/10.1140/epjp/i2017-11799-6
Regular Article
Spin, torsion and violation of null energy condition in traversable wormholes
1
INFN, Sezione di Napoli, Complesso Univ. Monte S. Angelo, I-80126, Napoli, Italy
2
Dipartimento di Fisica Ettore Pancini, Università di Napoli Federico II, Complesso Univ. di Monte S. Angelo, I-80126, Napoli, Italy
* e-mail: manfredonia@na.infn.it
Received:
8
November
2017
Accepted:
16
November
2017
Published online:
22
December
2017
The static spherically symmetric traversable wormholes are analysed in the Einstein-Cartan theory of gravitation. In particular, we computed the torsion tensor for matter fields with different spin 
. Interestingly, only for certain values of the spin, the torsion contribution to the Einstein-Cartan field equation allows one to satisfy both flaring-out condition and null energy condition. In this scenario, traversable wormholes can be produced by using usual (non-exotic) spinning matter.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2017
