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Development of quantum superconducting devices to observe quantum states of motion with an hybrid quantum electromechanical system

Grant number: 17/08602-0
Support type:Research Grants - Young Investigators Grants
Duration: October 01, 2017 - September 30, 2021
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Francisco Paulo Marques Rouxinol
Grantee:Francisco Paulo Marques Rouxinol
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Assoc. researchers:Amir Ordacgi Caldeira ; Frederico Borges de Brito ; Jose Alexandre Diniz
Associated grant(s):17/22035-1 - Multiuser equipment approved in grant 2017/08602-0: dilution fridge, AP.EMU
17/22037-4 - Multiuser equipment approved in grant 2017/08602-0: ultra high vacuum electron beam deposition system of aluminum, AP.EMU
Associated scholarship(s):19/10362-3 - Development of dissipative Gaussian filters to qubit electronics, BP.IC
19/03034-0 - Development of heterodyne measurement system of superconducting qubits, BP.MS


In the last two decades, important advances have been made in our understanding of quantum mechanics at the microscale and nanoscale. These investigations have been boosted by a multitude of motivations, some of which are fundamental in nature - like the study of decoherence, quantum measurement, or entanglement in a new regime - and other are applied - such as the development of new devices for using in quantum information architectures or for the sensing of week signals. The pursuit of these studies and applications has also stimulate the development of new hybrid quantum systems. In this proposal for the Programa de Jovens Pesquisadores FAPESP, the coordinator puts forth a research plan to advance the development of a research line to study hybrid quantum systems. As a general objective, the project for this new research group, will yield the first experimental efforts in Brazil to develop and utilize the state-of-the-art superconducting circuits and qubit technology as a test-bed to study decoherence, quantum measurement, or entanglement in a new regime. More specifically the outstanding goal in the field: the measurement of the energy eigenstates of a nanomechanical resonator and the measurement of entangled states of a nanomechanical resonator and a qubit, and the potential to create national and international collaboration. (AU)

Scientific publications
(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)
AUGUSTO, GABRIEL DE SOUZA; SCARMINIO, JAIR; CATARINI SILVA, PAULO ROGERIO; DE SIERVO, ABNER; ROUT, CHANDRA SEKHAR; ROUXINOL, FRANCISCO; GELAMO, ROGERIO VALENTIM. Flexible metal-free supercapacitors based on multilayer graphene electrodes. Electrochimica Acta, v. 285, p. 241-253, SEP 20 2018. Web of Science Citations: 11.

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