Abstract
Double anharmonicities g 1 r const 1 + δ 1 + g 2 r const 2 + δ 2 with pairs of arbitrary couplings g i small parameters δ i are considered. The feasibility of the double-series perturbation construction of energies is demonstrated in the first two orders. The single-series “delta expansion” of Bender et al. is reobtained in the single-anharmonicity special case with, say, g 2=0.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
