3 papers
quant-ph2026
Bell-CHSH inequality and unitary transformations in Quantum Field Theory
D. O. R. Azevedo, F. M. Guedes, M. S. Guimaraes +3
Unitary transformations are employed to enhance the violations of the Bell-CHSH inequality in relativistic Quantum Field Theory. The case of the scalar field in Minkowski spa…
hep-th2024
A study of the spin 1 Unruh-De Witt detectors
F. M. Guedes, M. S. Guimaraes, I. Roditi +1
A study of the spin 1 Unruh-De Witt detectors interacting with a relativistic scalar quantum field is presented. After tracing out the field modes, the resulting density matrix for…
hep-th2024
Unruh-De Witt detectors, Bell-CHSH inequality and Tomita-Takesaki theory
Fillipe M. Guedes, Marcelo S. Guimaraes, Itzhak Roditi +1
The interaction between Unruh-De Witt spin detectors and a real scalar field is scrutinized by making use of the Tomita-Takesaki modular theory as applied to the Von Neumann…