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Lucian Constantin

Researcher

Research Line

Nanotechnologies for Humans and Biosystems

Center

CBN@UniLe Lecce

Contacts

Center for Biomolecular Nanotechnologies CBN@Unile, Via Barsanti, Arnesano, I-73010
+39 0832 1816 227

Selected Publications

1) Nonuniform Scaling Applied to Surface Energies of Transition Metals
Letizia Chiodo, Lucian A. Constantin, Eduardo Fabiano, and Fabio Della Sala
Phys. Rev. Lett. 108, 126402 (2012)


2) Improving atomization energies of molecules and solids with a spin-dependent gradient correction from one-electron density analysis
Lucian A. Constantin, E. Fabiano, and F. Della Sala
Phys. Rev. B 84, 233103 (2011)


3) Correlation energy functional from jellium surface analysis
Lucian A. Constantin, Letizia Chiodo, Eduardo Fabiano, Igor Bodrenko, and Fabio Della Sala
Phys. Rev. B 84, 045126 (2011)


4) Semiclassical Neutral Atom as a Reference System in Density Functional Theory
Lucian A. Constantin, E. Fabiano, S. Laricchia, and F. Della Sala
Phys. Rev. Lett. 106, 186406 (2011)


5) Adiabatic-connection-fluctuation-dissipation approach to long-range behavior of exchange-correlation energy at metal surfaces: A numerical study for jellium slabs
Lucian A. Constantin and J. M. Pitarke
Phys. Rev. B 83, 075116 (2011)


6) Generalized gradient approximation bridging the rapidly and slowly varying density regimes: A PBE-like functional for hybrid interfaces
Eduardo Fabiano, Lucian A. Constantin, and Fabio Della Sala
Phys. Rev. B 82, 113104 (2010)


7) Exchange-correlation energy functional based on the Airy-gas reference system
Lucian A. Constantin, Adrienn Ruzsinszky, and John P. Perdew
Phys. Rev. B 80, 035125 (2009)


8) Workhorse Semilocal Density Functional for Condensed Matter Physics and Quantum Chemistry
John P. Perdew, Adrienn Ruzsinszky, Gábor I. Csonka, Lucian A. Constantin, and Jianwei Sun
Phys. Rev. Lett. 103, 026403 (2009)


9) Kinetic energy density functionals from the Airy gas with an application to the atomization kinetic energies of molecules
Lucian A. Constantin and Adrienn Ruzsinszky
Phys. Rev. B 79, 115117 (2009)


10) Exchange-correlation hole of a generalized gradient approximation for solids and surfaces
Lucian A. Constantin, John P. Perdew, and J. M. Pitarke
Phys. Rev. B 79, 075126 (2009)


11) Perdew et al. Reply:
John P. Perdew, Adrienn Ruzsinszky, Gábor I. Csonka, Oleg A. Vydrov, Gustavo E. Scuseria, Lucian A. Constantin, Xiaolan Zhou, and Kieron Burke
Phys. Rev. Lett. 101, 239702 (2008)


12) Dimensional crossover of the exchange-correlation energy at the semilocal level
Lucian A. Constantin
Phys. Rev. B 78, 155106 (2008)

 

13) Collapse of the Electron Gas to Two Dimensions in Density Functional Theory
Lucian A. Constantin, John P. Perdew, and J. M. Pitarke
Phys. Rev. Lett. 101, 016406 (2008)


14) Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces
John P. Perdew, Adrienn Ruzsinszky, Gábor I. Csonka, Oleg A. Vydrov, Gustavo E. Scuseria, Lucian A. Constantin, Xiaolan Zhou, and Kieron Burke
Phys. Rev. Lett. 100, 136406 (2008)


15) High-Level Correlated Approach to the Jellium Surface Energy, without Uniform-Gas Input
Lucian A. Constantin, J. M. Pitarke, J. F. Dobson, A. Garcia-Lekue, and John P. Perdew
Phys. Rev. Lett. 100, 036401 (2008)


16) Simple dynamic exchange-correlation kernel of a uniform electron gas
Lucian A. Constantin and J. M. Pitarke
Phys. Rev. B 75, 245127 (2007)


17) Laplacian-level density functionals for the kinetic energy density and exchange-correlation energy
John P. Perdew and Lucian A. Constantin
Phys. Rev. B 75, 155109 (2007)


18) Relevance of the Slowly Varying Electron Gas to Atoms, Molecules, and Solids
John P. Perdew, Lucian A. Constantin, Espen Sagvolden, and Kieron Burke
Phys. Rev. Lett. 97, 223002 (2006)


19) Wave-vector analysis of the jellium exchange-correlation surface energy in the random-phase approximation: Support for nonempirical density functionals
J. M. Pitarke, Lucian A. Constantin, and John P. Perdew
Phys. Rev. B 74, 045121 (2006)


20) Meta-generalized gradient approximation for the exchange-correlation hole with an application to the jellium surface energy
Lucian A. Constantin, John P. Perdew, and Jianmin Tao
Phys. Rev. B 73, 205104 (2006)


21) Exchange-correlation generalized gradient approximation for gold nanostructures
E. Fabiano, Lucian A. Constantin, and F. Della Sala
J. Chem. Phys. 134, 194112 (2011)

 

22) Communication: Ionization potentials in the limit of large atomic number
Lucian A. Constantin, John C. Snyder, John P. Perdew, and Kieron Burke
J. Chem. Phys. 133, 241103 (2010)


23) Condition on the Kohn–Sham kinetic energy and modern parametrization of the Thomas–Fermi density
Donghyung Lee, Lucian A. Constantin, John P. Perdew, and Kieron Burke
J. Chem. Phys. 130, 034107 (2009)


24) The Many-Body Exchange-Correlation Hole at Metal Surfaces
Lucian A. Constantin and J. M. Pitarke
J. Chem. Theory Comput., 2009, 5 (4), pp 895–901


25) Some Fundamental Issues in Ground-State Density Functional Theory: A Guide for the Perplexed
John P. Perdew, Adrienn Ruzsinszky, Lucian A. Constantin, Jianwei Sun and Gabor I. Csonka
J. Chem. Theory Comput., 2009, 5 (4), pp 902–908

 

26) Generalized Gradient Approximations of the Noninteracting Kinetic Energy from the Semiclassical Atom Theory: Rationalization of the Accuracy of the Frozen Density
Embedding
Theory for Nonbonded Interactions
S. Laricchia, E. Fabiano, L. A. Constantin, and F. Della Sala
J. Chem. Theory Comput., 2011, 7 (8), pp 2439–2451

 

27) Two-Dimensional Scan of the Performance of Generalized Gradient Approximations with Perdew–Burke–Ernzerhof-Like Enhancement Factor
E. Fabiano, Lucian A. Constantin, and F. Della Sala
J. Chem. Theory Comput., 2011, 7 (11), pp 3548–3559

28) Testing the broad applicability of the PBEint GGA functional and its one-parameter hybrid form
E. Fabiano1, Lucian A. Constantin, F. Della Sala
DOI: 10.1002/qua.24042

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I numeri di IIT

L’Istituto Italiano di Tecnologia (IIT) è una fondazione di diritto privato - cfr. determinazione Corte dei Conti 23/2015 “IIT è una fondazione da inquadrare fra gli organismi di diritto pubblico con la scelta di un modello di organizzazione di diritto privato per rispondere all’esigenza di assicurare procedure più snelle nella selezione non solo nell’ambito nazionale dei collaboratori, scienziati e ricercatori ”.

IIT è sotto la vigilanza del Ministero dell'Istruzione, dell'Università e della Ricerca e del Ministero dell'Economia e delle Finanze ed è stato istituito con la Legge 326/2003. La Fondazione ha l'obiettivo di promuovere l'eccellenza nella ricerca di base e in quella applicata e di favorire lo sviluppo del sistema economico nazionale. La costruzione dei laboratori iniziata nel 2006 si è conclusa nel 2009.

Lo staff complessivo di IIT conta circa 1440 persone. L’area scientifica è rappresentata da circa l’85% del personale. Il 45% dei ricercatori proviene dall’estero: di questi, il 29% è costituito da stranieri provenienti da oltre 50 Paesi e il 16% da italiani rientrati. Oggi il personale scientifico è composto da circa 60 principal investigators, circa 110 ricercatori e tecnologi di staff, circa 350 post doc, circa 500 studenti di dottorato e borsisti, circa 130 tecnici. Oltre 330 posti su 1400 creati su fondi esterni. Età media 34 anni. 41% donne / 59 % uomini.

Nel 2015 IIT ha ricevuto finanziamenti pubblici per circa 96 milioni di euro (80% del budget), conseguendo fondi esterni per 22 milioni di euro (20% budget) provenienti da 18 progetti europei17 finanziamenti da istituzioni nazionali e internazionali, circa 60 progetti industriali

La produzione di IIT ad oggi vanta circa 6990 pubblicazioni, oltre 130 finanziamenti Europei e 11 ERC, più di 350 domande di brevetto attive, oltre 12 start up costituite e altrettante in fase di lancio. Dal 2009 l’attività scientifica è stata ulteriormente rafforzata con la creazione di dieci centri di ricerca nel territorio nazionale (a Torino, Milano, Trento, Parma, Roma, Pisa, Napoli, Lecce, Ferrara) e internazionale (MIT ed Harvard negli USA) che, unitamente al Laboratorio Centrale di Genova, sviluppano i programmi di ricerca del piano scientifico 2015-2017.

IIT: the numbers

Istituto Italiano di Tecnologia (IIT) is a public research institute that adopts the organizational model of a private law foundation. IIT is overseen by Ministero dell'Istruzione, dell'Università e della Ricerca and Ministero dell'Economia e delle Finanze (the Italian Ministries of Education, Economy and Finance).  The Institute was set up according to Italian law 326/2003 with the objective of promoting excellence in basic and applied research andfostering Italy’s economic development. Construction of the Laboratories started in 2006 and finished in 2009.

IIT has an overall staff of about 1,440 people. The scientific staff covers about 85% of the total. Out of 45% of researchers coming from abroad 29% are foreigners coming from more than 50 countries and 16% are returned Italians. The scientific staff currently consists of approximately 60 Principal Investigators110 researchers and technologists350 post-docs and 500 PhD students and grant holders and 130 technicians. External funding has allowed the creation of more than 330 positions . The average age is 34 and the gender balance proportion  is 41% female against 59% male.

In 2015 IIT received 96 million euros in public funding (accounting for 80% of its budget) and obtained 22 million euros in external funding (accounting for 20% of its budget). External funding comes from 18 European Projects, other 17 national and international competitive projects and approximately 60 industrial projects.

So far IIT accounts for: about 6990 publications, more than 130 European grants and 11 ERC grants, more than 350 patents or patent applications12 up start-ups and as many  which are about to be launched. The Institute’s scientific activity has been further strengthened since 2009 with the establishment of 11 research nodes throughout Italy (Torino, Milano, Trento, Parma, Roma, Pisa, Napoli, Lecce, Ferrara) and abroad (MIT and Harvard University, USA), which, along with the Genoa-based Central Lab, implement the research programs included in the 2015-2017 Strategic Plan.