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SUMMARY:Hopf and Skyrme Solitons - Ivan Smalyukh (University of Colorado)
DTSTART:20190529T150000Z
DTEND:20190529T160000Z
UID:TALK125788@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:<span>Topologically nontrivial fields and vortices frequently 
 arise in classical and quantum field theories\, plasmas\, optics\, cosmolo
 gy and atomic systems. On the other hand\, condensed matter systems\, such
  as colloids\, magnets and liquid crystals\, offer the complexity in degre
 es of freedom and symmetries that allow for probing topologically analogou
 s phenomena on experimentally accessible scales. In my lecture\, I will di
 scuss Hopf and Skyrme solitons\, continuous but topologically nontrivial k
 notted field configurations localized in three or two spatial dimensions. 
 They emerge as static structures within the chiral condensed matter system
 s [1-4] and self-assemble into crystals\, but can also exhibit emergent co
 llective motions when powered by external stimuli [5]. I will show how suc
 h a synergistic interplay of topology and self-assembly paradigms can emer
 ge as an exciting scientific frontier of condensed matter.   <br></span><s
 pan><span>1. P. J. Ackerman and I. I. Smalyukh. <i>Nature Mater</i> <b>16<
 /b>\, 426-432 (2017).</span>  <br></span><span><span>2. J.-S.B. Tai\, P.J.
  Ackerman and I.I. Smalyukh. <i>PNAS.</i> <b>115</b>\, 921-926 (2018).</sp
 an> <br></span><span> <span>3. P. J. Ackerman and I. I. Smalyukh. <i>Phys 
 Rev X</i> <b>7</b>\, 011006 (2017). <br></span></span><span>  <span>4. J.-
 S. B. Tai and I. I. Smalyukh. <i>Phys Rev Lett</i> <b>121</b>\, 187201 (20
 18).</span>  5. H.R.O. Sohn\, C.D. Liu and I.I. Smalyukh. (2019).  </span>
 <br><br><br><br>
LOCATION:Seminar Room 2\, Newton Institute
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