Quantumness of composite systems: geometry, dynamics and thermodynamics

• Grant number: 17/03727-0
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2017
• End date: July 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Diogo de Oliveira Soares Pinto
• Grantee: Diogo de Oliveira Soares Pinto
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• City of the host institution: São Carlos

Abstract

The quantum information science is an area of knowledge of recent development. It is based on the study of physics of quantum properties of composite systems that enable new and more efficient ways to encode, process and distribute information among the parties. Despite the rapid growth of the area in the last two decades, particularly with regard to the development of marketable technologies related to cryptography and computing, the fragility of the effects of decoherence in most quantum resources has hampered the large-scale development of networks secure quantum communication. In this project we will discuss ideas relating both foundations and applications of Physics of Quantum Information. Regarding foundations, we are going to investigate problems related to generation of a non-Markovian dynamics, the connection between quantum states geometry and non-equilibrium Thermodynamics, and finally the role of time in quantum theory through a model of quantum clock. Regarding applications, we are going to investigate how a metrological quantity can be used to infer the degree of correlation of a quantum state, also study the effect of a non-Markovian dynamics in the efficiency of a quantum heat engine, implementing a protocol sequential quantum metrology for estimating the temperature of a thermal bath, and finally how to classify the dynamics of a system using fluctuation relations. In some of these threads will use quantum simulators based on room temperature Nuclear Magnetic Resonance systems as prototypes for testing realistic conditions. (AU)

Scientific publications

(30)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

MOREIRA, V, S.; MARQUES, B.; PAIVA, R. R.; CRUZ, L. S.; SOARES-PINTO, D. O.; SEMIAO, F. L.. Enhancing quantum transport efficiency by tuning non-Markovian dephasing. Physical Review A, v. 101, n. 1, JAN 27 2020. (17/03727-0)

FIUSA, GUILHERME; SOARES-PINTO, DIOGO O.; PIRES, DIEGO PAIVA. Fidelity-based distance bounds for N-qubit approximate quantum error correction. PHYSICAL REVIEW A, v. 107, n. 3, p. 11-pg., 2023-03-24. (17/03727-0)

MENDES, LEANDRO R. S.; SOARES-PINTO, DIOGO O.. Time as a consequence of internal coherence. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SC, v. 475, n. 2231, NOV 29 2019. (17/03727-0)

HU, CHANG-KANG; SANTOS, ALAN C.; CUI, JIN-MING; HUANG, YUN-FENG; SOARES-PINTO, DIOGO O.; SARANDY, MARCELO S.; LI, CHUAN-FENG; GUO, GUANG-CAN. Quantum thermodynamics in adiabatic open systems and its trapped-ion experimental realization. NPJ QUANTUM INFORMATION, v. 6, n. 1, AUG 26 2020. (17/03727-0)

CORRER, GUILHERME I.; AZADO, PEDRO C.; SOARES-PINTO, DIOGO O.; CARLO, GABRIEL G.. Optimal Complexity of Parameterized Quantum Circuits. Entropy, v. 28, n. 1, p. 18-pg., 2026-01-08. (17/03727-0)

MOREIRA, S., V; MARQUES, B.; PAIVA, R. R.; CRUZ, L. S.; SOARES-PINTO, D. O.; SEMIAO, F. L.. Enhancing quantum transport efficiency by tuning non-Markovian dephasing. PHYSICAL REVIEW A, v. 101, n. 1, p. 5-pg., 2020-01-27. (17/03727-0)

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, p. 10-pg., 2019-04-26. (17/07973-5, 17/03727-0)

MELO, PEDRO B.; IEMINI, FERNANDO; SOARES-PINTO, DIOGO O.; QUEIROS, SILVIO M. DUARTE; MORGADO, WELLES A. M.. Thermodynamic interpretation to stochastic Fisher information and single-trajectory speed limits. PHYSICAL REVIEW E, v. 112, n. 1, p. 11-pg., 2025-07-24. (17/03727-0)

SONE, AKIRA; SOARES-PINTO, DIOGO O.; DEFFNER, SEBASTIAN. Conditional quantum thermometry-enhancing precision by measuring less. QUANTUM SCIENCE AND TECHNOLOGY, v. 9, n. 4, p. 13-pg., 2024-10-01. (17/03727-0)

MARTINS, JACKES; DEFAVERI, LUCIANNO; SOARES-PINTO, DIOGO O.; DUARTE QUEIROS, SILVIO M.; MORGADO, WELLES A. M.. Non-Markovianity, entropy production, and Jarzynski equality. PHYSICAL REVIEW E, v. 103, n. 2, p. 16-pg., 2021-02-05. (17/03727-0)

CARMO, RAFAEL S.; SOARES-PINTO, DIOGO O.. Quantifying resources for the Page-Wootters mechanism: Shared asymmetry as relative entropy of entanglement. PHYSICAL REVIEW A, v. 103, n. 5, p. 13-pg., 2021-05-18. (17/03727-0)

PIRES, MARCELO A.; NAVES, CAIO B.; SOARES-PINTO, DIOGO O.; QUEIROS, SILVIO M. DUARTE. Probing fractal spatiotemporal inhomogeneity in a quantum walk. PHYSICAL REVIEW A, v. 109, n. 2, p. 13-pg., 2024-02-16. (17/03727-0)

ZAMBON, GUILHERME; SOARES-PINTO, DIOGO O.. Relations between Markovian and non-Markovian correlations in multitime quantum processes. PHYSICAL REVIEW A, v. 109, n. 6, p. 11-pg., 2024-06-03. (17/03727-0, 22/00993-9)

NAVES, CAIO B.; PIRES, MARCELO A.; SOARES-PINTO, DIOGO O.; DUARTE QUEIROS, SILVIO M.. Quantum walks in two dimensions: controlling directional spreading with entangling coins and tunable disordered step operator. Journal of Physics A-Mathematical and Theoretical, v. 56, n. 12, p. 26-pg., 2023-03-24. (17/03727-0)

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. (17/03727-0, 17/07973-5)

MARTINS, JACKES; DEFAVERI, LUCIANNO; SOARES-PINTO, DIOGO O.; DUARTE QUEIROS, SILVIO M.; MORGADO, WELLES A. M.. Non-Markovianity, entropy production, and Jarzynski equality. Physical Review E, v. 103, n. 2, FEB 5 2021. (17/03727-0)

PIRES, DIEGO PAIVA; SOARES-PINTO, DIOGO O.; VERNEK, E.. Dynamics of quantum resources in regular and Majorana fermion systems. PHYSICAL REVIEW A, v. 105, n. 4, p. 20-pg., 2022-04-06. (17/03727-0)

NAVES, CAIO B.; PIRES, MARCELO A.; SOARES-PINTO, DIOGO O.; DUARTE QUEIROS, SILVIO M.. Enhancing entanglement with the generalized elephant quantum walk from localized and delocalized states. PHYSICAL REVIEW A, v. 106, n. 4, p. 13-pg., 2022-10-06. (17/03727-0)

DIOGO SOARES-PINTO; CAIO NAVES. O Interferômetro de Mach-Zehnder e a Escolha Retardada Quântica. Revista Brasileira de Ensino de Física, v. 43, 2021-05-03. (17/03727-0)

MEDINA, IVAN; DRINKO, ALEXANDRE; CORRER, GUILHERME I.; AZADO, PEDRO C.; SOARES-PINTO, DIOGO O.. Variational-quantum-eigensolver-inspired optimization for spin-chain work extraction. PHYSICAL REVIEW A, v. 110, n. 1, p. 9-pg., 2024-07-17. (17/03727-0, 22/08786-2)

PEREIRA-ALVES, FELIPE; SOARES-PINTO, DIOGO O.; PAIVA, FERNANDO F.. NMR diffusion in restricted environment approached by a fractional model. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, v. 641, p. 10-pg., 2024-04-04. (17/03727-0)

SONE, AKIRA; SOARES-PINTO, DIOGO O.; DEFFNER, SEBASTIAN. Exchange fluctuation theorems for strongly interacting quantum pumps. AVS QUANTUM SCIENCE, v. 5, n. 3, p. 6-pg., 2023-09-01. (17/03727-0)

PIRES, DIEGO PAIVA; DEAZEVEDO, EDUARDO R.; SOARES-PINTO, DIOGO O.; BRITO, FREDERICO; FILGUEIRAS, JEFFERSON G.. Experimental investigation of geometric quantum speed limits in an open quantum system. COMMUNICATIONS PHYSICS, v. 7, n. 1, p. 8-pg., 2024-05-02. (17/03727-0)

MENDONCA, TAYSA M.; CELERI, LUCAS C.; PATERNOSTRO, MAURO; SOARES-PINTO, DIOGO O.. System-environment quantum information flow. PHYSICAL REVIEW A, v. 110, n. 4, p. 5-pg., 2024-10-10. (22/09219-4, 21/01277-2, 17/03727-0)

MENDONCA, TAYSA M.; SOARES-PINTO, DIOGO O.; PATERNOSTRO, MAURO. Information flow-enhanced precision in collisional quantum thermometry. PHYSICAL REVIEW RESEARCH, v. 7, n. 4, p. 6-pg., 2025-11-21. (17/03727-0, 22/09219-4, 21/01277-2)

CORRER, GUILHERME ILARIO; MEDINA, IVAN; AZADO, PEDRO C.; DRINKO, ALEXANDRE; SOARES-PINTO, DIOGO O.. Characterizing randomness in parameterized quantum circuits through expressibility and average entanglement. QUANTUM SCIENCE AND TECHNOLOGY, v. 10, n. 1, p. 18-pg., 2025-01-01. (17/03727-0, 22/08786-2, 23/14488-7)

ROSSI, VINICIUS P.; SOARES-PINTO, DIOGO O.. Wigner's friend and the quasi-ideal clock. PHYSICAL REVIEW A, v. 103, n. 5, p. 13-pg., 2021-05-14. (17/03727-0)

SOARES-PINTO, DIOGO O.. Quantum Information Science: From foundations to new technologies. PHYSICA B-CONDENSED MATTER, v. 653, p. 2-pg., 2023-02-07. (17/03727-0)

ROSAL, ALBERTO J. B.; SOARES-PINTO, DIOGO O.; PIRES, DIEGO PAIVA. Quantum speed limits based on Schatten norms: Universality and tightness. Physics Letters A, v. 534, p. 10-pg., 2025-01-15. (17/03727-0)

MENDES, LEANDRO R. S.; BRITO, FREDERICO; SOARES-PINTO, DIOGO O.. Non-Linear Equation of Motion for Page-Wootters Mechanism with Interaction and Quasi-Ideal Clocks. UNIVERSE, v. 11, n. 9, p. 15-pg., 2025-09-10. (17/03727-0)