Projectile coherence: The Van Cittert - Zernike theorem revisited

29th International Conference on Photonic, Electronic, and Atomic Collisions

Fabre, I.^1 ; Navarrete, F.^1 ; Sarkadi, L.^2 ; Barrachina, R.O.^1

Centro Atómico Bariloche, Instituto Balseiro, Comisión Nacional de Energía Atómica, Universidad Nacional de Cuyo, Av. Bustillo 9500, Bariloche

8400, Argentina^1

Institute for Nuclear Research, Hungarian Academy of Sciences (ATOMKI), Pf. 51, Debrecen

H-4001, Hungary^2

关键词: Atomic collision;    Density matrix;    Identical particles;    Liouville;    Neumann equation;    Quantum mechanical;    Time evolutions;    Van Cittert;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/4/042003/pdf
DOI  :  10.1088/1742-6596/635/4/042003

来源: IOP

【 摘 要 】

We study the time evolution of an incoherent mixture of identical particles by solving the Liouville - von Neumann equation for the corresponding density matrix. We demonstrate the quantum mechanical equivalent of van Cittert - Zernike theorem, and apply these results to the quantitative analysis of the coherence of a beam of particles in atomic collisions.