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Non-perturbative methods applied to strongly correlated electronic systems

Grant number: 07/57630-5
Support type:Research Projects - Thematic Grants
Duration: April 01, 2008 - March 31, 2013
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Eduardo Miranda
Grantee:Eduardo Miranda
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Co-Principal Investigators:Amir Ordacgi Caldeira ; Eduardo Miranda ; Klaus Werner Capelle ; Luiz Nunes de Oliveira
Associated grant(s):11/20865-0 - Universality and the thermoelectric transport properties of semiconductor nanostructures, AV.EXT
Associated scholarship(s):12/02702-0 - Magnetic relaxation in dilute magnetic alloys, BP.MS
11/23773-0 - Simplified models for atoms and molecules within the second quantization formalism, BP.IC
09/14603-3 - Transport in mesoscopics nanostructures in the presence of dissipative environment, BP.PD
+ associated scholarships 09/08843-1 - Bipartite and Multipartite Entanglement and applications, BP.PD
08/08255-0 - Controlled entangled states in open quantum systems, BP.PD
08/03557-8 - Entanglement in many-particle systems, BP.PD - associated scholarships


This project focuses on condensed matter systems whose electronic properties are dominated by correlation effects. The problems to be studied can be divided in three classes: a) correlated systems with low dimensionality; b) magnetic or superconducting systems; c) disordered systems. The envisaged approach, which encompasses a variety of techniques going from the traditional to the innovative, crosses the walls defining this division and directs its attention to the central goal motivating the formulation of this proposal: the identification of routes establishing the connection between electronic correlations and the physical properties of condensed matter systems. From this perspective, this proposal can be viewed as an updated version of the original program which defined solid state physics in the first half of the twentieth century, namely, the search for the identification of the consequences of Bloch's theorem on the physical properties of crystals. From its development, we expect more than semi or quantitatively precise results. We seek a new, integrated vision of the effects of electronic correlations. The team responsible for this project envolves six researchers, from the Instituto de Física Gleb Wataghin (Unicamp) and the Instituto de Física de São Carlos (USP). (AU)

Scientific publications (11)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
QUITO, V. L.; HOYOS, JOSE A.; MIRANDA, E. Random SU(2)-symmetric spin-S chains. Physical Review B, v. 94, n. 6 AUG 3 2016. Web of Science Citations: 1.
MARD, H. JAVAN; ANDRADE, E. C.; MIRANDA, E.; DOBROSAVLJEVIC, V. Non-Gaussian Spatial Correlations Dramatically Weaken Localization. Physical Review Letters, v. 114, n. 5 FEB 3 2015. Web of Science Citations: 1.
TANG, SHAO; MIRANDA, E.; DOBROSAVLJEVIC, V. Mottness-induced healing in strongly correlated superconductors. Physical Review B, v. 91, n. 2 JAN 5 2015. Web of Science Citations: 4.
MARD, H. JAVAN; HOYOS, JOSE A.; MIRANDA, E.; DOBROSAVLJEVIC, V. Strong-disorder renormalization-group study of the one-dimensional tight-binding model. Physical Review B, v. 90, n. 12 SEP 23 2014. Web of Science Citations: 6.
WARNES, J. H.; MIRANDA, E. Symmetry breaking and physical properties of the bosonic single-impurity Anderson model. European Physical Journal B, v. 85, n. 10 OCT 2012. Web of Science Citations: 2.
DORETTO, R. L.; SMITH, C. MORAIS; CALDEIRA, A. O. Finite-momentum condensate of magnetic excitons in a bilayer quantum Hall system. Physical Review B, v. 86, n. 3 JUL 26 2012. Web of Science Citations: 5.
ANDRADE, ERIC C.; MIRANDA, EDUARDO; DOBROSAVLJEVIC, VLADIMIR. Mechanism for Enhanced Disordered Screening in Strongly Correlated Metals: Local vs. Nonlocal Effects. Journal of Superconductivity and Novel Magnetism, v. 25, n. 5, p. 1399-1402, JUL 2012. Web of Science Citations: 2.
WARNES, JESUS HERAZO; MIRANDA, EDUARDO. Ground-state properties of the disordered spin-1 Bose-Hubbard model: A stochastic mean-field theory study. Physical Review B, v. 85, n. 21 JUN 29 2012. Web of Science Citations: 1.
ANDRADE, E. C.; MIRANDA, E.; DOBROSAVLJEVIC, V. Quantum Ripples in Strongly Correlated Metals. Physical Review Letters, v. 104, n. 23, p. 236401, 2010. Web of Science Citations: 11.
ANDRADE, E. C.; MIRANDA, E.; DOBROSAVLJEVIC, V. Energy-resolved spatial inhomogeneity of disordered Mott systems. PHYSICA B-CONDENSED MATTER, v. 404, n. 19, p. 3167-3171, OCT 15 2009. Web of Science Citations: 9.
ZHOU, S.; HOYOS, J. A.; DOBROSAVLJEVIC, V.; MIRANDA, E. Valence-bond theory of highly disordered quantum antiferromagnets. EPL, v. 87, n. 2 JUL 2009. Web of Science Citations: 2.

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