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Thermodynamics and information technologies with continuous variable quantum systems

Grant number: 17/07973-5
Support type:Regular Research Grants
Duration: July 01, 2018 - June 30, 2020
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Cooperation agreement: University of Nottingham
Principal researcher:Gabriel Teixeira Landi
Grantee:Gabriel Teixeira Landi
Principal researcher abroad: Gerardo Adesso
Institution abroad: University of Nottingham, University Park, England
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Assoc. researchers:Diogo de Oliveira Soares Pinto ; Jader Pereira dos Santos ; Marcelo Martinelli ; Paulo Alberto Nussenzveig


In this project we propose to establish a collaboration between the Universities of São Paulo, Nottingham and Birmingham, aimed at investigating informational and thermodynamic aspects of quantum systems described by continuous variables and their applications to quantum technologies. In particular, the proposal will focus on the quantification of irreversibility phenomena in non-equilibrium continuous variable systems, encompassing concrete models of light-matter interaction and the role played by different nonclassical resources, such as squeezing and quantum correlations, in their characterisation. Fundamental limits on the performance of nanoscale thermal machines, such as heat engines and refrigerators in the presence of non-equilibrium reservoirs, will be studied theoretically and tested experimentally. In particular, the project will develop a proof-of-concept implementation of a ``quantum tricycle'', a device which can function as a refrigerator or a heat engine, connected to a compact source of squeezed light. The extent to which nonclassical fluctuations due to squeezing may enhance the performance of such a device beyond classical limitations will be assessed in detail. While progressing towards this goal, the project will deliver a number of theoretical advances on timely problems at the boundaries between quantum information, quantum optics, and thermodynamics. (AU)

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Scientific publications (12)
(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)
GOES, BRUNO O.; LANDI, GABRIEL T. Entropy production dynamics in quench protocols of a driven-dissipative critical system. Physical Review A, v. 102, n. 5 NOV 3 2020. Web of Science Citations: 0.
GOES, B. O.; LANDI, G. T.; SOLANO, E.; SANZ, M.; CELERI, L. C. Wehrl entropy production rate across a dynamical quantum phase transition. PHYSICAL REVIEW RESEARCH, v. 2, n. 3 SEP 15 2020. Web of Science Citations: 0.
VARIZI, ADALBERTO D.; VIEIRA, ANDRE P.; CORMICK, CECILIA; DRUMOND, RAPHAEL C.; LANDI, GABRIEL T. Quantum coherence and criticality in irreversible work. PHYSICAL REVIEW RESEARCH, v. 2, n. 3 AUG 20 2020. Web of Science Citations: 0.
ROSSI, MASSIMILIANO; MANCINO, LUCA; LANDI, GABRIEL T.; PATERNOSTRO, MAURO; SCHLIESSER, ALBERT; BELENCHIA, ALESSIO. Experimental Assessment of Entropy Production in a Continuously Measured Mechanical Resonator. Physical Review Letters, v. 125, n. 8 AUG 19 2020. Web of Science Citations: 0.
MALOUF, WILLIAM T. B.; GOOLD, JOHN; ADESSO, GERARDO; LANDI, GABRIEL T. Analysis of the conditional mutual information in ballistic and diffusive non-equilibrium steady-states. Journal of Physics A-Mathematical and Theoretical, v. 53, n. 30 JUL 31 2020. Web of Science Citations: 0.
SALAZAR, DOMINGOS S. P.; LANDI, GABRIEL T. Nonlinear Onsager relations for Gaussian quantum maps. PHYSICAL REVIEW RESEARCH, v. 2, n. 3 JUL 16 2020. Web of Science Citations: 0.
TIMPANARO, ANDRE M.; SANTOS, JADER P.; LANDI, GABRIEL T. Landauer's Principle at Zero Temperature. Physical Review Letters, v. 124, n. 24 JUN 16 2020. Web of Science Citations: 0.
MICADEI, KAONAN; LANDI, GABRIEL T.; LUTZ, ERIC. Quantum Fluctuation Theorems beyond Two-Point Measurements. Physical Review Letters, v. 124, n. 9 MAR 2 2020. Web of Science Citations: 0.
GOES, BRUNO O.; FIORE, CARLOS E.; LANDI, GABRIEL T. Quantum features of entropy production in driven-dissipative transitions. PHYSICAL REVIEW RESEARCH, v. 2, n. 1 FEB 7 2020. Web of Science Citations: 3.
SERAFINI, A.; LOSTAGLIO, M.; LONGDEN, S.; SHACKERLEY-BENNETT, U.; HSIEH, C-Y; ADESSO, G. Gaussian Thermal Operations and The Limits of Algorithmic Cooling. Physical Review Letters, v. 124, n. 1 JAN 2 2020. Web of Science Citations: 1.
TIMPANARO, ANDRE M.; GUARNIER, GIACOMO; GOOLD, JOHN; LANDI, GABRIEL T. Thermodynamic Uncertainty Relations from Exchange Fluctuation Theorems. Physical Review Letters, v. 123, n. 9 AUG 30 2019. Web of Science Citations: 5.
MARTINELLI, TIAGO; SOARES-PINTO, DIOGO O. Quantifying quantum reference frames in composed systems: Local, global, and mutual asymmetries. Physical Review A, v. 99, n. 4 APR 26 2019. Web of Science Citations: 2.

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