dephasing

Definitions

noun quantum mechanics, medical imaging A loss of the synchronization or coherence caused by a perturbation, upon which the system returns to its state before perturbation.

de- +‎ phasing

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The saving grace is that this dephasing effect takes a certain amount of distance, so the trick is to modify the properties of the gain medium every so often.

Ars Technica Chris Lee 2011
The photon echoes that the atoms generated indicated that they had a dephasing time of 160 picoseconds.

Ars Technica 2010
The photon echoes that the atoms generated indicated that they had a dephasing time of 160 picoseconds.

Ars Technica 2010
Intra-voxel do not produce a signal dephasing (mismapping) • Methods to reduce flow artefact

Recently Uploaded Slideshows 2009
As a major driving process of non-resonant emitter-mode coupling, the effect of 'pure dephasing', i.e., loss of coherence in the system without the emission of a photon, especially through interaction with phonons (= quantized oscillations of the crystal matrix) seems to play an important role.

Nano Tech Wire 2009
Slide 14: Rephasing For static spins, The dephasing caused by external field inhomogeneities can be eliminated with a 180° pulse.

Recently Uploaded Slideshows 2008
44 Er 11 Er 200 ms 150 ms 13 Er 41 Er 44 - > 11 Er Non-Adiabatic (2ms ramp up, 10ms dephasing):

Recently Uploaded Slideshows 2008