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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif">Please join us for a Colloquium<b>
</b>on <b>Tuesday, April 12at 3:45 p.m. </b>with<b> </b></span><b><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black;background:white">Prof. Mitali Banerjee,
</span></b><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#555555;background:white">Laboratory of Quantum Physics, Topology and Correlations, École Polytechnique Fédérale de Lausanne, Switzerland<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Faculty Host: Nandini Trivedi<o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Please use the Zoom link below to attend virtually.</span><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif"><o:p></o:p></span></p>
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<b><span style="font-size:20.0pt;font-family:"Helvetica",sans-serif;color:black">Neutral modes in quantum Hall effect: Dr. Jekyll and Mr. Hyde</span></b><b><span style="font-size:20.0pt;font-family:"Helvetica",sans-serif"><o:p></o:p></span></b></p>
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<strong><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black;background:white">Abstract</span></strong><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black;background:white">:
</span><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#555555;background:white">Quantum Hall effects in 2D electron gas exemplify the earliest class of topological phases in solid state physics, characterized by an insulating bulk and
gapless edge excitations. The quantum Hall effect has been a source of many concepts that have become essential in more general quantum many-body problems. The fractional quantum Hall states host fractional charges, neutral excitations, and unlike the integer
quantum Hall states, they generally support counter-propagating chiral edge modes. The theoretical and the experimental search for such fractionalized particles continues to attract extensive attention. One reason for the enthusiasm is fundamental - as fractionalization
can brilliantly exemplify the rich emergent long-range behavior that many-body systems can exhibit. Another reason is more pragmatic, as certain non-abelian fractionalized excitations form the basis of topological quantum computers that promise inherent immunity
against errors. In this talk, I will present the role of neutral modes in the quantum Hall effect, as the highly sought after non-abelian excitations are often “chargeneutral.” Yet, there are bosonic neutral modes that plague the single-particle interferometers
in the fractional quantum Hall regime.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><b><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Bio</span></b><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">: </span><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#555555">Education:<br>
• 2012: Ph. D. in Physics – S. N. Bose National Centre for Basic Sciences, Kolkata, India<br>
Thesis title: Studies of magnetic and transport properties of disordered systems<br>
• 2011–2013: Postdoctoral Fellow, Indian Institute of Science, Bangalore, India<br>
• 2013–2018: Postdoctoral Fellow, Weizmann Institute of Science, Rehovot, Israel<br>
• 2018 – 2019: Associate Research Scientist, Columbia University, Ney York, USA<br>
• From: 1 Jan 2020: Tenure Track Assistant Professor of Physics at EPFL<o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Zoom link:<o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#555555"><a href="https://osu.zoom.us/j/94858307115?pwd=K0JDMTROWVhIOUp6bU1sU0prZjNUZz09"><span style="color:#BA0C2F">https://osu.zoom.us/j/94858307115?pwd=K0JDMTROWVhIOUp6bU1sU0prZjNUZz09</span></a><o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Meeting ID: <strong><span style="font-family:"Helvetica",sans-serif">948 5830 7115</span></strong></span><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:black">Password: <strong><span style="font-family:"Helvetica",sans-serif">PRB1080<o:p></o:p></span></strong></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><img border="0" width="224" height="45" style="width:2.3333in;height:.4666in" id="x_Picture_x0020_1" src="cid:image001.png@01D84D79.12F02820" alt="The Ohio State University"><br>
</span><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Ruth Leonard</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><br>
Executive Assistant to the Chair<br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Department of Physics</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333">
<br>
Physics Research Building, 191 West Woodruff Ave, Columbus, OH 43210<br>
614-292-5018 Office<br>
</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><a href="mailto:leonard.469@osu.edu"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0563C1;background:white">leonard.469@osu.edu</span></a></span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333">
</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
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