High-order connected moments expansion for the Rabi Hamiltonian

Amore, Paolo; Fernández, Francisco Marcelo; Rodriguez, Martin

info:eu-repo/semantics/article

Fecha

2011-12-03

Registro en:

Amore, Paolo; Fernández, Francisco Marcelo; Rodriguez, Martin; High-order connected moments expansion for the Rabi Hamiltonian; De Gruyter; Open Physics; 10; 1; 03-12-2011; 102-108

2391-5471

http://hdl.handle.net/11336/154310

CONICET Digital

CONICET

https://repositorioslatinoamericanos.uchile.cl/handle/2250/4351488

Autor

Amore, Paolo

Fernández, Francisco Marcelo

Rodriguez, Martin

Institución

Consejo Nacional de Investigaciones Científicas y Tecnológicas (Argentina)

Resumen

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.

Materias

Connected Moment Expansion

Rabi Hamiltonian

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