Skip to main content

Diagrammatic Monte Carlo and GW Approximation for Jellium and Hydrogen Chain

  • Reference work entry
  • First Online:
Handbook of Materials Modeling

Abstract

Within the general framework of skeleton diagrammatic expansions, the fully self-consistent GW approximation (sc-GW) is the simplest scheme based on the lowest-order diagrams. However, this established method for electronic structure calculations is rarely used in its original form when the polarization function is obtained from the product of two fully dressed single-particle Green’s functions because its most serious deficiency is known to be an incorrect prediction of the dielectric response. In this contribution, we examine the sc-GW approximation for the homogeneous electron gas and find that problems with the dielectric response are solved by enforcing the particle number conservation law in the polarization function. Our protocol for restoring physical properties of the sc-GW approximation (and more advanced schemes based on computing higher-order vertex corrections) is physically transparent and easy to implement at no additional computational cost. We further examine the accuracy of the sc-GW approximation and systematic convergence of the bold diagrammatic Monte Carlo scheme to the exact result for the single-orbital hydrogen chain system.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 799.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 999.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Igor S. Tupitsyn .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2020 Springer Nature Switzerland AG

About this entry

Check for updates. Verify currency and authenticity via CrossMark

Cite this entry

Van Houcke, K., Tupitsyn, I.S., Prokof’ev, N.V. (2020). Diagrammatic Monte Carlo and GW Approximation for Jellium and Hydrogen Chain. In: Andreoni, W., Yip, S. (eds) Handbook of Materials Modeling. Springer, Cham. https://doi.org/10.1007/978-3-319-44677-6_3

Download citation

Publish with us

Policies and ethics