Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-07-14
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
We report measurement of the ensemble averaged transverse spin relaxation time (T2*) in bulk and few molecules of the organic semiconductor tris(8-hydroxyquinolinolato aluminum) or Alq3. This system exhibits two characteristic T2* times, the longer of which is temperature-independent and the shorter is temperature-dependent, indicating that the latter is most likely limited by spin-phonon interaction. Based on the measured data, we infer that the single particle T2 time is long enough to meet Knill's criterion for fault tolerant quantum computing, even at room temperature. Alq3 is also an optically active organic and we propose a simple optical scheme for spin qubit read out. Moreover, we found that the temperature-dependent T2* time is considerably shorter in bulk Alq3 powder than in few molecules confined in 1-2 nm sized cavities, which is suggestive of a new type of ``phonon bottleneck effect''. This is very intriguing for organic molecules where carriers are always localized over individual molecules but the phonons are delocalized.
Bandyopadhyay Santanu
Cahay Marc
Kanchibotla B.
Pramanik Santanu
No associations
LandOfFree
Transverse spin relaxation time in organic molecules: A possible platform for fault tolerant room temperature quantum computing 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 Transverse spin relaxation time in organic molecules: A possible platform for fault tolerant room temperature quantum computing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transverse spin relaxation time in organic molecules: A possible platform for fault tolerant room temperature quantum computing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-443664