Non-classical effects in quantum thermodynamics

• Grant number: 19/04184-5
• Support Opportunities: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): July 01, 2019
• Effective date (End): June 30, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Roberto Menezes Serra
• Grantee: Jonas Floriano Gomes dos Santos
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

The possibility of manipulating information through non-classical effects has resulted in the allocation of appreciable amount of financial resources in many countries. The financial investiment for the development of a quantum technology to manipulate information substantially increased in recent years. The understanding of quantum processes in small quantum systems out of equilibrium surely is an important step for the stablishment of limits of this emergent techonology. In this sense, fundamental investigations of quantum effects in thermodynamic protocols must contribute for the development of what was conventinally called Quantum Thermodynamics. One of the goals of this project is to investigate how non-classical effects and characteristics are associated to entropy production and irreversibility in the execution of protocols of quantum systems in finite-time. We will also investigate how to use non-classical characteristic to improve thermodynamic processes in quantum systems, in particular, work extraction and refrigerator protocols. Among other non-classical features, we are interested in effects associated to quantum coherence and non-Markovian dynamics in a quantum system interacting with a structured reservoir. The present project encompasses theoretical developments concatenated with tests of experimental principles of the mechanicms which will be studied. (AU)

Scientific publications

(4)

(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)

CAMATI, PATRICE A.; SANTOS, JONAS F. G.; SERRA, ROBERTO M.. Employing non-Markovian effects to improve the performance of a quantum Otto refrigerator. Physical Review A, v. 102, n. 1, JUL 20 2020. (19/04184-5)

SANTOS, JONAS F. G.; VIEIRA, CARLOS H. S.; DIEGUEZ, PEDRO R.. Negativity-mutual information conversion and coherence in two-coupled harmonic oscillators. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, v. 579, OCT 1 2021. (19/04184-5)

SANTOS, JONAS F. G.. Noncommutative phase-space effects in thermal diffusion of Gaussian states. Journal of Physics A-Mathematical and Theoretical, v. 52, n. 40, OCT 4 2019. (19/04184-5)

SANTOS, JONAS F. G.. Heat flow and noncommutative quantum mechanics in phase-space. Journal of Mathematical Physics, v. 61, n. 12, DEC 1 2020. (19/04184-5)