Physics – Quantum Physics
Scientific paper
2010-12-10
Nature Phys. 7 (2011) 172 - 177
Physics
Quantum Physics
Scientific paper
10.1038/NPHYS1858
Quantum mechanical phenomena, such as electronic coherence and entanglement, play a key role in achieving the unrivalled efficiencies of light-energy conversion in natural photosynthetic light-harvesting complexes, and triggered the growing interest in the possibility of organic quantum computing. Since biological systems are intrinsically heterogeneous, clear relations between structural and quantum-mechanical properties can only be obtained by investigating individual assemblies. However, single-molecule techniques to access ultrafast coherences at physiological conditions were not available so far. Here we show by employing femtosecond pulse-shaping techniques that quantum coherences in single organic molecules can be created, probed, and manipulated at ambient conditions even in highly disordered solid environments. We find broadly distributed coherence decay times for different individual molecules giving direct insight into the structural heterogeneity of the local surroundings. Most importantly, we induce Rabi-oscillations and control the coherent superposition state in a single molecule, thus performing a basic femtosecond single-qubit operation at room temperature.
Brinks Daan
Hildner Richard
van Hulst Niek F.
No associations
LandOfFree
Femtosecond Coherence and Quantum Control of Single Molecules at Room Temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Femtosecond Coherence and Quantum Control of Single Molecules at Room Temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Femtosecond Coherence and Quantum Control of Single Molecules at Room Temperature will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-105029