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Article overview
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Quantum state preparation and control of single molecular ions | D. Leibfried
; | Date: |
1 Sep 2011 | Abstract: | Preparing molecules at rest and in a highly pure electronic, rotational and
vibrational quantum state is a long standing dream in chemistry and physics, so
far only achieved for a select set of molecules in experimental setups
dedicated to that species. Here, a quantum-limited combination of mass
spectrometry and Raman-spectroscopy is proposed that should be applicable to a
wide range of molecular ions. No excitation of electrons in the molecule
followed by uncontrolled decay and branching into several lower energy states
is required. Instead, the molecule is always confined to a small number of
rotational states within the electronic and vibrational ground state manifold,
while a co-trapped atomic ion provides efficient entropy removal and allows for
extraction of information on the molecule. The outlined techniques might enable
preparation, manipulation and measurement of pure quantum states of a large
multitude of highly isolated and precisely prepared molecular ion species with
the same instrument. Such a device could lead to unprecedented opportunities
for precision molecular spectroscopy with applications including, but not
limited to, determination of molecular properties for physics and chemistry to
tests of fundamental laws of physics. | Source: | arXiv, 1109.0208 | Services: | Forum | Review | PDF | Favorites |
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