Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 28: Poster – Quantum Optics
Q 28.27: Poster
Tuesday, March 3, 2026, 17:00–19:00, Philo 2. OG
Hanbury Brown-Twiss interference of electrons in free space — •Florian Fleischmann1, Mona Bukenberger1,2, Anton Classen1,3, Marc-Oliver Pleinert1, and Joachim von Zanthier1 — 1Friedrich-Alexander- Universität Erlangen-Nürnberg, 91058 Erlangen, Germany — 2Freie Universität Berlin, Berlin, Germany — 3University of Utah, Salt Lake City, USA
We investigate the spatial second-order correlation function of two electrons originating from two nanotips in a Hanbury Brown-Twiss like setup. First, we consider semi-classically the effects of the Pauli exclusion principle and Coulomb repulsion on the expected correlation pattern. This is followed by a quantum-mechanical treatment of the problem, where we separate the system into relative and center-of-mass coordinates in analogy to the Hydrogen atom ansatz. While the center-of-mass system is described as a free particle, the relative system contains the Coulomb scattering process which translates into an effective one-particle problem. We expand the respective initial state of the electrons in the eigenstates of the corresponding Hamiltonian and evolve the system in time. After the scattering process, the function is evaluated in the far field. We present the formal solution of the problem and discuss the current state of the numerical investigations.
Keywords: Hanbury Brown-Twiss Interference; Hong-Ou-Mandel effect; Two-electron interference; Second-order correlations; Electron scattering