dc.contributor.author | Yildiz, A. | |
dc.contributor.author | Sakiroglu, S. | |
dc.contributor.author | Dogan, U. | |
dc.contributor.author | Akgungor, K. | |
dc.contributor.author | Epik, H. | |
dc.contributor.author | Sokmen, I. | |
dc.contributor.author | Sari, H. | |
dc.contributor.author | Ergun, Y. | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T10:06:06Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T10:06:06Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 0217-9792 | |
dc.identifier.uri | https://dx.doi.org/10.1142/S0217979211055683 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/9621 | |
dc.description | WOS: 000289155800009 | en_US |
dc.description.abstract | A study of variational wave functions for calculation of the ground-state energies of excitons confined in a two-dimensional (2D) disc-like and three-dimensional (3D) spherical parabolic GaAs quantum dots (QDs) is presented. We have used four variational trial wave functions constructed as the harmonic-oscillator basis multiplied by different correlation functions. The proposed correlation function formed by including linear expansion in terms of Hylleraas-like coordinates to the Jastrow factor is able to capture nearly exactly the ground-state energies of 31) excitons, and it properly account for the results of 2D excitons. Quantum Monte Carlo techniques combined with the proposed wave function are a powerful tool for studying excitons in parabolic QDs. | en_US |
dc.description.sponsorship | Cumhuriyet University; National MOVPE Crystal Growth and Characterization Laboratory, Turkey [DPT-K 120]; TUBITAK [TBAG 105T492, TBAG 107T012, TBAG-10ST015] | en_US |
dc.description.sponsorship | The authors acknowledge the support of the Cumhuriyet University, National MOVPE Crystal Growth and Characterization Laboratory, Turkey, DPT-K 120, TUBITAK Grants TBAG 105T492, TBAG 107T012, and TBAG-10ST015. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | WORLD SCIENTIFIC PUBL CO PTE LTD | en_US |
dc.relation.isversionof | 10.1142/S0217979211055683 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Exciton | en_US |
dc.subject | parabolic confinement | en_US |
dc.subject | variational Monte Carlo method | en_US |
dc.subject | Monte Carlo diagonalization method | en_US |
dc.title | VARIATIONAL COMPUTATIONS FOR EXCITONS IN QUANTUM DOTS: A QUANTUM MONTE CARLO STUDY | en_US |
dc.type | article | en_US |
dc.relation.journal | INTERNATIONAL JOURNAL OF MODERN PHYSICS B | en_US |
dc.contributor.department | [Yildiz, A. -- Sakiroglu, S. -- Dogan, U. -- Akgungor, K. -- Epik, H. -- Sokmen, I.] Dokuz Eylul Univ, Dept Phys, TR-35160 Izmir, Turkey -- [Sari, H.] Cumhuriyet Univ, Dept Phys, TR-58140 Sivas, Turkey -- [Ergun, Y.] Anadolu Univ, Dept Phys, TR-26470 Eskisehir, Turkey | en_US |
dc.contributor.authorID | Hokelek, Tuncer -- 0000-0002-8602-4382; akgungor, kadir -- 0000-0003-1071-4405; | en_US |
dc.identifier.volume | 25 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.endpage | 130 | en_US |
dc.identifier.startpage | 119 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |