Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental inhibition of decoherence on flying qubits via bang-bang
  control   Decoherence may significantly affect the polarization state of optical pulses
propagating in dispersive media because of the unavoidable presence of more
than a single frequency in the envelope of the pulse. Here we report on the
suppression of polarization decoherence in a ring cavity obtained by properly
retooling for photonic qubits the ``bang-bang'' protection technique already
employed for nuclear spins and nuclear-quadrupole qubits. Our results show that
bang-bang control can be profitably extended to quantum information processes
involving flying polarization qubits.

11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs