S
Stefano Pittalis
Researcher at University of Missouri
Publications - 92
Citations - 1457
Stefano Pittalis is an academic researcher from University of Missouri. The author has contributed to research in topics: Density functional theory & Local-density approximation. The author has an hindex of 22, co-authored 87 publications receiving 1193 citations. Previous affiliations of Stefano Pittalis include University of São Paulo & University of California, Irvine.
Papers
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Exact Conditions in Finite-Temperature Density-Functional Theory
Stefano Pittalis,Stefano Pittalis,Cesar Ramon Proetto,Cesar Ramon Proetto,Andrea Floris,Antonio Sanna,C. Bersier,Kieron Burke,E. K. U. Gross +8 more
TL;DR: The exact conditions that have proven crucial in constraining and constructing accurate approximations for ground-state DFT are generalized to finite temperature, including the adiabatic connection formula, and consequences for functional construction are discussed.
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First-principles approach to noncollinear magnetism: towards spin dynamics.
Sangeeta Sharma,J. K. Dewhurst,Claudia Ambrosch-Draxl,Claudia Ambrosch-Draxl,Stefan Kurth,Nicole Helbig,Stefano Pittalis,Sam Shallcross,Lars Nordström,E. K. U. Gross +9 more
TL;DR: In this paper, a description of noncollinear magnetism in the framework of spin density functional theory is presented for the exact exchange energy functional which depends explicitly on two-component spinor orbitals.
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First-principles approach to Non-Collinear Magnetism: towards Spin-dynamics
Sangeeta Sharma,J. K. Dewhurst,Claudia Ambrosch-Draxl,Stefan Kurth,N. Helbig,Stefano Pittalis,E. K. U. Gross,Sam Shallcross,L. Nordstroem +8 more
TL;DR: In this article, a description of non-collinear magnetism in the framework of spin density functional theory is presented for the exact exchange energy functional which depends explicitly on two-component spinor orbitals.
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Hartree and Exchange in Ensemble Density Functional Theory: Avoiding the Nonuniqueness Disaster.
Tim Gould,Stefano Pittalis +1 more
TL;DR: A guaranteed single-valued "Hartree-exchange" ensemble density functional, E_{Hx}[n], is introduced in terms of the right derivative of the universal ensemble densityfunctional with respect to the coupling constant at vanishing interaction.
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Universal correction for the Becke-Johnson exchange potential.
TL;DR: In this paper, a correction to the Becke-Johnson approximation was proposed to deal with current-carrying states and recovers the correct asymptotic behavior for systems with any number of electrons.