arXiv subjects

C. Aris Chatzidimitriou-Dreismann

Publications and source records attributed to C. Aris Chatzidimitriou-Dreismann.

2 recordsLinked to original sources

arXiv2007

On correlation approach to scattering in the decoherence timescale - Towards the theoretical interpretation of NCS and ECS experimental findings

We provide a "first principles" description of scattering from open quantum systems subject to a Lindblad-type dynamics. In particular we consider the case that the duration of the scattering process is of similar order as the decoherence time of the scatterer. Under rather general conditions, the derivations lead to the the following new result: The irreversible time-evolution may cause a reduction of the system's transition rate being effectuated by scattering. This is tantamount to a shortfall of scattering intensity. The possible connection with striking experimental results of neutron and electron Compton scattering from protons in condensed matter is mentioned.

quant-ph↗

arXiv2007

Attosecond neutron Compton scattering from protons

The effect of "anomalous" scattering of neutrons and electrons from protons in the electron-volt energy-transfer range is considered, and related experimental results are mentioned. A recent independent confirmation of this effect with a new data analysis procedure is presented. Due to the very short characteristic scattering time, there is no well defined separation of time scales of electronic and protonic motions. An outline of a proposed theoretical interpretation is presented, which is based on the fact that scattering protons represent \textit{open} quantum systems, thus being subject to decoherence.

quant-ph↗