000 03088nam a22004935i 4500
001 978-3-642-29605-5
003 DE-He213
005 20140220083316.0
007 cr nn 008mamaa
008 120522s2012 gw | s |||| 0|eng d
020 _a9783642296055
_9978-3-642-29605-5
024 7 _a10.1007/978-3-642-29605-5
_2doi
050 4 _aQC170-197
050 4 _aQC717.6-718.8
072 7 _aPHM
_2bicssc
072 7 _aSCI074000
_2bisacsh
072 7 _aSCI051000
_2bisacsh
082 0 4 _a539
_223
100 1 _aSagi, Yoav.
_eauthor.
245 1 0 _aCollisional Narrowing and Dynamical Decoupling in a Dense Ensemble of Cold Atoms
_h[electronic resource] /
_cby Yoav Sagi.
264 1 _aBerlin, Heidelberg :
_bSpringer Berlin Heidelberg :
_bImprint: Springer,
_c2012.
300 _aXIII, 81 p. 43 illus., 20 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
505 0 _aThe Experimental Setup -- Theoretical Framework -- Spectral Narrowing due to Elastic Collisions -- The Ensemble Spectrum with an Arbitrary Detuning Distribution -- Motional Broadening in Ensembles with Heavy-tail Detuning Distribution -- Suppression of Collisional Decoherence by Dynamical Decoupling.
520 _aUltra-cold atomic ensembles have emerged in recent years as a powerful tool in many-body physics research, quantum information science and metrology. This thesis presents an experimental and theoretical study of the coherent properties of trapped atomic ensembles at high densities, which are essential to many of the aforementioned applications. The study focuses on how inter-particle interactions modify the ensemble coherence dynamics, and whether it is possible to extend the coherence time by means of external control. The thesis presents a theoretical model which explains the effect of elastic collision of the coherence dynamics and then reports on experiments which test this model successfully in the lab. Furthermore, the work includes the first implementation of dynamical decoupling with ultra-cold atomic ensembles. It is demonstrated experimentally that by using dynamical decoupling the coherence time can be extended 20-fold. This has a great potential to increase the usefulness of these ensembles for quantum computation.
650 0 _aPhysics.
650 0 _aQuantum theory.
650 1 4 _aPhysics.
650 2 4 _aAtomic, Molecular, Optical and Plasma Physics.
650 2 4 _aQuantum Information Technology, Spintronics.
650 2 4 _aQuantum Physics.
650 2 4 _aLow Temperature Physics.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783642296048
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-642-29605-5
912 _aZDB-2-PHA
999 _c103061
_d103061