Proceedings – QNS III International Workshop on Quantum Nonstationary Systems

This book comprises eight chapters written by participants of the III International Workshop on Quantum Nonstationary Systems (QNS-3), held from August 26 to 30, 2024, at the International Center of Physics, University of Brasília, in Brasília, Brazil. All chapters were peer-reviewed by members of the Editorial Board.   Contents: 1. Dynamical Casimir effect in superconducting cavities: from photon generation to universal quantum gates, by Fernando C. Lombardo and Paula I. Villar; 2. Vacuum energy around particles created via dynamical Casimir effect, by Danilo T. Alves; 3. Graviton induced decoherence of a composite particle, by T. H. Moreira and L. C. Céleri; 4. Quantum Rabi oscillations in the semiclassical limit: backreaction on the cavity field and entanglement, by Alexandre P. Costa and Alexandre Dodonov; 5. Relativistic approach to thermodynamic irreversibility, by M. Basso, J. Maziero and L. C. Céleri; 6. Physics-informed neural networks learning a two-qubit Hamiltonian, by L. K. Castelano, I. Cunha, F. S. Luiz, M. V. de Souza Prado and F. F. Fanchini; 7. Spontaneous emission and Purcell effect: some aspects, by P. P. Abrantes, D. Szilard and C. Farina; 8. Timescales for thermalization, quantum chaos, and self-averaging, by Isaías Vallejo-Fabila and Lea F. Santos.