Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Attosecond tracking of light absorption and refraction in fullerenes   The collective response of matter is ubiquitous and widely exploited, e.g. in
plasmonic, optical and electronic devices. Here we trace on an attosecond time
scale the birth of collective excitations in a finite system and find distinct
new features in this regime. Combining quantum chemical computation with
quantum kinetic methods we calculate the time-dependent light absorption and
refraction in fullerene that serve as indicators for the emergence of
collective modes. We explain the numerically calculated novel transient
features by an analytical model and point out the relevance for ultra-fast
photonic and electronic applications. A scheme is proposed to measure the
predicted effects via the emergent attosecond metrology.

15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ