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Abstracts
We analyze the convergence properties of the connected moments expansion (CMX) for the Rabi Hamiltonian. To this end we calculate the moments and connected moments of the Hamiltonian operator to a sufficiently large order. Our large-order results suggest that the CMX is not reliable for most practical purposes because the expansion exhibits considerable oscillations.
Journal
Year
Volume
Issue
Pages
102-108
Physical description
Dates
published
1 - 2 - 2012
online
3 - 12 - 2011
Contributors
author
- Facultad de Ciencias, CUICBAS, Universidad de Colima, Bernal Díaz del Castillo 340, Colima, Colima, México, paolo.amore@gmail.com
author
- INIFTA (UNLP, CCT La Plata-CONICET), División Química Teórica, Blvd. 113 y 64 (S/N), Sucursal 4, Casilla de Correo 16, 1900, La Plata, Argentina
author
- Facultad de Ciencias, CUICBAS, Universidad de Colima, Bernal Díaz del Castillo 340, Colima, Colima, México
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-011-0101-9