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<p class="MsoNormal"><span style="font-family:"Georgia","serif"">Please join us TODAY, Monday, December 2nd for the Condensed Matter Theory Seminar presented by Rajdeep Sensarma, Tata Institute of Fundamental Research at 11:30am in the Smith Seminar Room (1080
PRB).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif"">Ferromagnetic Response of a "High Temperature" Quantum Antiferromagnet<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif"">Precise implementation of quantum many-body lattice Hamiltonians with ultracold atoms has provided a novel platform to study strongly interacting many-body physics relevant to condensed matter
systems like high temperature superconductors. One of the main goals of cold atom experiments now is to observe antiferromagnetic spin ordering of fermions in a repulsive fermi Hubbard model. In this talk I will show that a closely related system, called the
ionic Hubbard model, provides a better chance of observing antiferromagnetic ordering in fermions. I will also discuss a strange phenomenon, that the antiferromagnetically ordered system actually shows a ferromagnetic dynamic response in a wide temperature
range.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif"">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif"">Trisch<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img width="224" height="45" id="Picture_x0020_1" src="cid:image001.png@01CEEF40.C280A800" alt="The Ohio State University"><br>
<b><span style="color:#C00000">Trisch Longbrake</span></b><o:p></o:p></p>
<p class="MsoNormal">Administrative Associate I<br>
<span style="color:#C00000">Department of Physics</span> Condensed Matter<br>
2196 Physics Research Building, 191 W. Woodruff Ave., Columbus, OH 43210<br>
614-292-2778 Office / 614-292-7557 Fax<br>
<a href="mailto:longbrake.6@osu.edu">longbrake.6@osu.edu</a> <a href="http://osu.edu/">
osu.edu</a><o:p></o:p></p>
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