47 citations
3 papers
cond-mat.mtrl-sci2005★ 15 cited
First principles studies of the Born effective charges and electronic dielectric tensors for the relaxor PMN (PbMg1/3Nb2/3O3)
Narayani Choudhury, R. E. Cohen, Eric J. Walter
We report first principles density functional calculations of the Born effective charges and electronic dielectric tensors for the relaxor PMN (PbMg1/3Nb2/3O3). Visualization of th…
cond-mat.other2005★ 30 cited
Correlation effects in the ground state of trapped atomic Bose gases
Wirawan Purwanto, Shiwei Zhang
We study the effects of many-body correlations in trapped ultracold atomic Bose gases. We calculate the ground state of the gas using a ground-state auxiliary-field quantum Monte C…
cond-mat.mtrl-sci2004★ 47 cited
Ab initio linear response and frozen phonons for the relaxor PMN (PbMg1/3Nb2/3O3)
Narayani Choudhury, Zhigang Wu, E. J. Walter +1
We report first principles density functional studies using plane wave basis sets and pseudopotentials and all electron linear augmented plane wave (LAPW) of the relative stability…