Description
The interaction of high energy light with matter leads to the emission of electrons in a process known as photoionization. This process underpins numerous measurement techniques in atomic and molecular physics, and material science to study the structure and properties of matter.
Despite the inherently quantum nature of the photoionization process, existing photoelectron-based measurement techniques mostly rely on measuring the classical momentum of the emitted electrons, overlooking fundamental quantum aspects of the photoionization process. The emergence of a new research field at the interface of attosecond physics and quantum information offers the opportunity to revisit the photoionization process to develop photoelectron-based quantum metrology. In this this talk I will first present advances in photoelectron quantum state tomography before discussing recent experiments illustrating how ultrafast photoionization could serve as a novel platform for testing quantum mechanics.
