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researcher

James J. Shepherd

31 papers hereh-index 221.6k citations62 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author1
  • first author10
  • middle author8
  • last author11

Across the 30 of 31 papers where every author was matched, so the position is known.

fields
  • physics.chem-ph14
  • physics.comp-ph11
  • cond-mat.mtrl-sci2
  • cond-mat.soft2
  • cond-mat.quant-gas1
  • cs.SE1
same name
  • James J. Shepherd — 2 papers, h 3

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20082026
most citedA Full Configuration Interaction Perspective on the Homogeneous Electron Gas

150 citations · 1.2k across the 28 of their papers we have counts for

collaborators
Showing 2019Show all

3 papers · 1 filter

physics.chem-ph2019★ 1 cited

Using density matrix quantum Monte Carlo for calculating exact-on-average energies for ab-initio Hamiltonians in a finite basis set

Hayley R. Petras, Sai Kumar Ramadugu, Fionn D. Malone +1

We here apply the recently developed initiator density matrix quantum Monte Carlo (i-DMQMC) to a wide range of chemical environments using atoms and molecules in vacuum. i-DMQMC sa…

physics.chem-ph2019★ 20 cited

An optimized twist angle to find the twist-averaged correlation energy applied to the uniform electron gas

Tina N Mihm, Alexandra R. McIsaac, James J. Shepherd

We explore an alternative to twist averaging in order to obtain more cost-effective and accurate extrapolations to the thermodynamic limit (TDL) for coupled cluster doubles (CCD) c…

physics.chem-ph2019★ 18 cited

Fully quantum embedding with density functional theory for full configuration interaction quantum Monte Carlo

Hayley R. Petras, Daniel Graham, Sai Kumar Ramadugu +2

In common with many high-accuracy electronic structure methods, the initiator adaptation of full configuration interaction quantum Monte Carlo (i-FCIQMC) has difficulty treating re…

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