, which “improvements the relative energy of your states throughout the coupling of the sphere towards the polarization �?E �?· P → may be consulted in Appendix B in [19]. We now would like to underline the main components of the method devised to acquire this kind of equations. Therefore, https://-lithiumniobatecrystal06171.bloggerswise.com/39786723/the-smart-trick-of-lithium-niobate-crystal-that-nobody-is-discussing