2014
DOI: 10.48550/arxiv.1410.5691
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Polaronic mass renormalization of impurities in BEC: correlated Gaussian wavefunction approach

Yulia E. Shchadilova,
Fabian Grusdt,
Alexey N. Rubtsov
et al.
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Cited by 10 publications
(22 citation statements)
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“…Results from Feynman path-integral calculations and diagrammatic Monte Carlo (MC) calculations -both taken from Ref. [105] -are compared to MF theory, the RG approach and to variational correlated Gaussian wavefunctions (CGWs) [57]. The results are sensitive to the value of the UV momentum cut-off Λ 0 , here Λ 0 = 2000/ξ.…”
Section: Renormalization Group Approachmentioning
confidence: 99%
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“…Results from Feynman path-integral calculations and diagrammatic Monte Carlo (MC) calculations -both taken from Ref. [105] -are compared to MF theory, the RG approach and to variational correlated Gaussian wavefunctions (CGWs) [57]. The results are sensitive to the value of the UV momentum cut-off Λ 0 , here Λ 0 = 2000/ξ.…”
Section: Renormalization Group Approachmentioning
confidence: 99%
“…We close this chapter by discussing an alternative approach [57,[122][123][124] to describing phonon correlations in the polaron cloud which is closely related to the RG method. This approach is variational and relies on the refinement of the mean-field wavefunction formulated in the polaron frame (i.e.…”
Section: Gaussian Variational Approachmentioning
confidence: 99%
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