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Open Quantum Systems Decoherence Quantum Simulation

High--order connected moments expansion for the Rabi Hamiltonian

arXiv

Authors: Paolo Amore, Francisco M. Fernández, Martin Rodriguez

Year

2010

Paper ID

10667

Status

Preprint

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~2 min

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Abstract

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.

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We analyze the convergence properties of the connected moments expansion (CMX) for the Rabi Hamiltonian.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1010.5773 [2] arXiv https://arxiv.org/abs/1010.5773 [3] Publisher https://arxiv.org/abs/1010.5773

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