1.Lochon catalyzed D-D fusion in a solid matrix of Pd/Dx. This theory explains the observation of He-4 production +23.8MeV by McKubre et al. and
Arata coworkers (see the paper of McKubre et al ICCF,70,3(2000).
This reaction becomes allowed only through the mediation of lochons (local charged bosons) composites of a pair of electrons in the singlet state stabilized by phonon interaction. This is published in NATL. ACAD. SCI. LETT. Vol. 30, 243 (2007).
The energetic He-4 can cause transmutation of other nuclei by the inverse alpha decay (absorption) as seen by Iwamura in one or two steps.
2.Laser stimulation of LENR in deuterated palladium.(our paper published in Current Science,Vol.91,907 (2006) )This explains the experimental results of Letts and Cravens (See the proceedings of ICCF-10. Our ideas involve the role of surface plasmons and polaritons. I gave this idea after the presentation by Letts in ICCF-10 in my comments there. This mechanism is akin to what happens in "Surface enhanced Raman Effect"). The optical potential goes up by several orders of magnitude.
In our model you have the formation of linear lattice of D-D- in the host matrix due to defect formatuin etc. This truncates the Gamow barrier due to dimensional effects. We also take into account screenig effects due to exchange of lochons between two deuterons.