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UID:DSC-21532
DTSTART;TZID=Europe/Berlin:20241216T145000
SEQUENCE:1734331208
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20241216T162000
URL:https://www.dresden-science-calendar.de/calendar/en/detail/21532
LOCATION:TUD\,    
SUMMARY:Pohle: Numerical simulations of spin liquids and spin nematics in s
 pin-1 magnets
CLASS:PUBLIC
DESCRIPTION:Speaker: Rico Pohle\nInstitute of Speaker: Tohoku University\nT
 opics:\nPhysik\n Location:\n  Name: TUD (REC/C213)\n  Street:   \n  City: 
  \n  Phone: \n  Fax: \nDescription: <p><strong>Abstract</strong></p> <p>Sp
 in-1 magnets allow for dipolar and quadrupolar moments on a single site\, 
 leading to rich physical properties as seen in spin nematic phases [1]\, F
 e-based superconductors [2] and cold-atom systems [3]. However\, probing t
 hese unconventional phases experimentally remains challenging\, and theref
 ore requires new theoretical tools to describe and interpret their ground 
 state and excitation properties. In this talk\, we present a new Monte Car
 lo and molecular dynamics method designed for SU(3) coherent states\, whic
 h can be used to study thermodynamic and dynamic properties of spin-1 magn
 ets [4]. We benchmark this method by studying the ferroquadrupolar phase o
 f the spin-1 bilinear-biquadratic (BBQ) model on the triangular lattice\, 
 and show excellent agreement with analytical flavour-wave theory and low-t
 emperature expansion results. Additionally\, we demonstrate the advantage 
 of our approach through real-time dynamics simulations of topological defe
 cts in a spin nematic [5] and reveal a novel Z2 classical chiral spin liqu
 id in the spin-1 Kitaev model with BBQ interactions [6-8].<br> <br> [1] H.
  Tsunetsugu and M. Arikawa\, J. Phys. Soc. Jpn <strong>75</strong>\, 08370
 1 (2006).<br> [2] R. M. Fernandes\, A. V. Chubukov\, and J. Schmalian\, Na
 t. Phys. <strong>10</strong>\, 97 EP (2014).<br> [3] E. Demler and F. Zhou
 \, Phys. Rev. Lett. <strong>88</strong>\, 163001 (2002).<br> [4] K. Remund
 \, R. Pohle\, Y. Akagi\, J. Romhányi\, and N. Shannon\, Phys. Rev. Resear
 ch <strong>4</strong>\, 033106 (2022).<br> [5] L. Chojnacki\, R. Pohle\, H
 . Yan\, Y. Akagi\, N. Shannon\, Phys. Rev. B <strong>109</strong>\, L22040
 7 (2024). [6] R. Pohle\, N. Shannon\, and Y. Motome\, Phys. Rev. B <strong
 >107</strong>\, L140403 (2023).<br> [7] R. Pohle\, N. Shannon\, and Y. Mot
 ome\, Phys. Rev. Research <strong>6</strong>\, 033077 (2024).<br> [8] H. Y
 an\, R. Pohle\, arXiv:2409.04061 (arxiv:2409.04061).</p> <p><strong>Zoom</
 strong><strong>:</strong> 688 4227 2214 (https://tu-dresden.zoom-x.de/j/68
 842272214?pwd=2nPGt3aESuZVlyhMAyv96TZRxkU9F9.1)\, Passcode: IFMP2024-5</p>
DTSTAMP:20260523T092504Z
CREATED:20241202T063556Z
LAST-MODIFIED:20241216T064008Z
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