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Transport properties and quantum computation in nanostructures

Grant number: 12/13052-6
Support type:Regular Research Grants
Duration: March 01, 2013 - February 28, 2015
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Leonardo Kleber Castelano
Grantee:Leonardo Kleber Castelano
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

This project aims at the systematic study of transport properties in nanostructures, as well as the potential applicability of these nanostructures as elements for quantum computing. Thus, we intend to analyze the problem of transport in quantum dots considering the electron-electron interaction between the incident electron and the confined ones. In addition, we will study the spin-dependent transport in quantum wires and the spin-transfer torque effect. Finally, we will analyze the dynamics of quantum correlations, essential for quantum computing implementation, in quantum dots and nitrogen vacancy in diamond. (AU)

Articles published in Agência FAPESP Newsletter about the research grant
Quantum dot transistor simulates functions of neurons 

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)
CASTELANO, LEONARDO K.; DE LIMA, EMANUEL F.; MADUREIRA, JUSTINO R.; DEGANI, MARCOS H.; MAIALLE, MARCELO Z. Optimal control of universal quantum gates in a double quantum dot. Physical Review B, v. 97, n. 23 JUN 4 2018. Web of Science Citations: 2.
RIVERA-RUIZ, C. M.; DE LIMA, E. F.; FANCHINI, F. F.; LOPEZ-RICHARD, V.; CASTELANO, L. K. Optimal control of hybrid qubits: Implementing the quantum permutation algorithm. Physical Review A, v. 97, n. 3 MAR 21 2018. Web of Science Citations: 1.
HARTMANN, F.; MAIER, P.; REBELLO SOUSA DIAS, M.; GOEPFERT, S.; CASTELANO, L. K.; EMMERLING, M.; SCHNEIDER, C.; HOEFLING, S.; KAMP, M.; PERSHIN, Y. V.; MARQUES, G. E.; LOPEZ-RICHARD, V.; WORSCHECH, L. Nanoscale Tipping Bucket Effect in a Quantum Dot Transistor-Based Counter. Nano Letters, v. 17, n. 4, p. 2273-2279, APR 2017. Web of Science Citations: 3.
CASTELANO, L. K.; FANCHINI, F. F.; BERRADA, K. Open quantum system description of singlet-triplet qubits in quantum dots. Physical Review B, v. 94, n. 23 DEC 23 2016. Web of Science Citations: 6.
PERSHIN, YURIY V.; CASTELANO, LEONARDO K.; HARTMANN, FABIAN; LOPEZ-RICHARD, VICTOR; DI VENTRA, MASSIMILIANO. A Memristive Pascaline. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v. 63, n. 6, p. 558-562, JUN 2016. Web of Science Citations: 8.
FERNANDES DOS SANTOS, L.; CASTELANO, L. K.; PADILHA, J. X.; PUSEP, Y.; MARQUES, G. E.; SMIRNOV, D.; BAKAROV, A. K.; TOROPOV, A. I.; LOPEZ-RICHARD, V. Excitonic spin-splitting in quantum wells with a tilted magnetic field. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 28, n. 5 FEB 10 2016. Web of Science Citations: 1.
PFENNING, ANDREAS; HARTMANN, FABIAN; DIAS, MARIAMA REBELLO SOUSA; LANGER, FABIAN; KAMP, MARTIN; CASTELANO, LEONARDO KLEBER; LOPEZ-RICHARD, VICTOR; MARQUES, GILMAR EUGENIO; HOEFLING, SVEN; WORSCHECH, LUKAS. Photocurrent-voltage relation of resonant tunneling diode photodetectors. Applied Physics Letters, v. 107, n. 8 AUG 24 2015. Web of Science Citations: 15.
LOPES-OLIVEIRA, V.; CASTELANO, L. K.; MARQUES, G. E.; ULLOA, S. E.; LOPEZ-RICHARD, V. Berry phase and Rashba fields in quantum rings in tilted magnetic field. Physical Review B, v. 92, n. 3 JUL 29 2015. Web of Science Citations: 7.
PFENNING, ANDREAS; HARTMANN, FABIAN; SOUSA DIAS, MARIAMA REBELLO; CASTELANO, LEONARDO KLEBER; SUESSMEIER, CHRISTOPH; LANGER, FABIAN; HOEFLING, SVEN; KAMP, MARTIN; MARQUES, GILMER EUGENIO; WORSCHECH, LUKAS; LOPEZ-RICHARD, VICTOR. Nanothermometer Based on Resonant Tunneling Diodes: From Cryogenic to Room Temperatures. ACS NANO, v. 9, n. 6, p. 6271-6277, JUN 2015. Web of Science Citations: 15.
HAI, G-Q; CASTELANO, L. K. Metastable electron-pair states in a two-dimensional crystal. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 26, n. 11 MAR 19 2014. Web of Science Citations: 4.
BEZERRA, ANIBAL T.; CASTELANO, LEONARDO K.; DEGANI, MARCOS H.; MAIALLE, MARCELO Z.; FARINAS, PAULO F.; STUDART, NELSON. Generation and control of spin-polarized photocurrents in GaMnAs heterostructures. Applied Physics Letters, v. 104, n. 2 JAN 13 2014. Web of Science Citations: 2.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.