Coherence and de-coherence in the Time-Resolved ARPES of realistic materials: An ab-initio perspective

Coherence in amalgamated algebra along an ideal

Let $f: Arightarrow B$ be a ring homomorphism and let $J$ be an ideal of $B$. In this paper, we investigate the transfer of the property of coherence to the amalgamation $Abowtie^{f}J$. We provide necessary and sufficient conditions for $Abowtie^{f}J$ to be a coherent ring.

Time-resolved probing of the ground state coherence in rubidium.

We demonstrate the preparation and probing of the coherence between the hyperfine ground states |S(1/2),F=1> and |5S(1/2),F=2> of the Rb87 isotope. The effects of various coherence control techniques, i.e., fractional stimulated Raman adiabatic passage and coherent population return, on the coherence are investigated. These techniques are implemented using nearly degenerate pump and Stokes lase...

The Coherence and Incoherence among the Order of Effusion, Physics, and Ancient Astronomy from the Perspective of Muslim Philosophers

  The present article deals with coherence and incoherence among the theories of the order of effusion, physics and ancient astronomy. There is no coherence between these fields in the view of Plotinus who is the innovator of the theory of effusion, while there is a coherence and correlation among these orders in Farabichr('39')s philosophy. In this regard Ibn Sina, Ikhwan al-Safa , Shaykh al-...

Mapping the evolution of spatial coherence through time-resolved fluorescence

Pseudorotation in pyrrolidine: rotational coherence spectroscopy and ab initio calculations of a large amplitude intramolecular motion.

Pseudorotation in the pyrrolidine molecule was studied by means of femtosecond degenerate four-wave mixing spectroscopy both in the gas cell at room temperature and under supersonic expansion. The experimental observations were reproduced by a fitted simulation based on a one-dimensional model for pseudorotation. Of the two conformers, axial and equatorial, the latter was found to be stabilized...