Alexandru Georgescu joined the Simons Foundation in 2017 as a Flatiron research fellow at the Center for Computational Quantum Physics. His main interests lie in elucidating the underlying quantum physics in correlated complex oxides and their heterostructures as well as other quantum materials using a variety of electronic structure and many-body methods (Density Functional Theory, Dynamical Field Theory, Slave-Boson techniques and others). He received his Ph.D. in 2017 from Yale University, and he earned his bachelor’s degree at Columbia University, where he was an I.I. Rabi scholar. He is also committed to community service, having volunteered in scientific education with a focus on student mentoring, public lectures and curriculum development. His work in this area was recognized with the D. Allan Bromley fellowship during his time at Yale.
The public repository for the slave-boson code he developed can be found here: https://bitbucket.org/yalebosscode/boss/wiki/Home
Education
Ph.D, M.Phil., M.S., Physics, Yale University
B.A., Physics, Columbia University
Selected Publications:
“‘Disentangling lattice and electronic contributions to the metal–insulator transition from bulk vs. layer confined RNiO3′” Alexandru B. Georgescu , Oleg E. Peil , Ankit Disa , Antoine Georges, and Andrew J. Millis, Proceedings of the National Academy of Science, 2019
“Surface Piezoelectricity of (0001) Sapphire”, Alexandru B. Georgescu and Sohrab Ismail-Beigi, Physical Review Applied, (2019), 11, 064065
“Confinement of Magnetism in Atomically Thin La0.7Sr0.3MnO3/La0.7Sr0.3CrO3 Heterostructures”, Sanaz Koohfar, Alexandru B Georgescu, Aubrey N. Penn, James M. LeBeau, Elke Arenholz, Divine P. Kumah, Nature Partner Journals Quantum Materials, 4, 25, 2019
“Control of Hidden Ground-State order in NdNiO3 Superlattices”, Ankit S Disa, Alexandru B Georgescu et al, Physical Review M (Editor’s Suggestion), Vol 1, 024410, 2017
“Generalized Slave Particle Method for Extended Hubbard Models”, Alexandru B. Georgescu and Sohrab Ismail-Beigi, Physical Review B, Vol 92, 235117, 2015
“Symmetry breaking in occupation number based slave-particle methods”, Alexandru B. Georgescu and Sohrab Ismail-Beigi, Physical Review B, Vol 96, 165135, 2017
“Reversible modulation of orbital occupancies via an interface-induced polar state in metallic manganites”, H.Chen, Q.Qiao, M.S.J. Marshall, Alexandru B. Georgescu et al