Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent State Monitoring in Quantum Dots   We study the dynamics of excitonic states in dimer and trimer arrangements of
colloidal quantum dots using a density matrix approach. The dots are coupled
via a dipole-dipole interaction akin to the F\"orster mechanism. Coherent
oscillations of tuned donor dots are shown to appear as plateaus in the
acceptor dot, and therefore in its optical response. This behavior provides one
with an interesting and unique handle to monitor the quantum state of the
dimer, an "eavesdroping arrangement." A trimer cluster in a symmetrical loop
shows steady states in a shorter characteristic time than the typical radiative
lifetime of the dots. Breaking the symmetry of the loop results again in
damping oscillatory states in the donor dots and plateaus in the
eavesdropping/acceptor dot. The use of realistic parameters allows direct
comparison with recent experiments and indicates that coherent state monitoring
is possible in real experiments.

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The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom