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<p style="margin:0in;background:white"><span class="contentpasted0"><span style="color:black">Dear enthusiasts of the SLAAM seminars,</span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black"> </span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">We are excited to announce that the next <a href="https://physics.ucmerced.edu/slaam" target="_blank" title="https://physics.ucmerced.edu/slaam"><span style="font-size:12.0pt;color:#0563C1">Soft Living
Active and Adaptive Matter (SLAAM)</span></a> seminar will be given by <b>Dr. </b></span></span><b><span style="font-size:12.0pt;color:black">Shreyas Gokhale<span class="apple-converted-space"> </span></span></b><span style="font-size:12.0pt;color:black">(MIT)<span class="apple-converted-space"> </span></span><span class="contentpasted0"><span style="color:black">on <b>Monday, April
15, </b>at <b>9am Pacific/11am Central/12 noon Eastern time (US)</b>, with the title:</span></span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#242424"> </span><span style="color:black"><o:p></o:p></span></p>
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<b><span style="font-size:12.0pt;color:black">“Excitable nonreciprocal solids”</span></b><span style="color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black"> </span></span><span style="color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">Please join at the link below to attend:</span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black"><a href="https://zoom.us/j/99546002717?pwd=R09PZ0dmMmZaTW9KWGp4V1Vadk5ZQT09" title="https://zoom.us/j/99546002717?pwd=R09PZ0dmMmZaTW9KWGp4V1Vadk5ZQT09"><span style="color:#0563C1">https://zoom.us/j/99546002717?pwd=R09PZ0dmMmZaTW9KWGp4V1Vadk5ZQT09</span></a></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">Zoom Meeting ID:</span></span><span class="apple-converted-space"><span style="font-size:12.0pt;color:black"> </span></span><span style="font-size:12.0pt;color:black">995 4600 2717</span><span class="contentpasted0"><span style="color:black">
| Passcode:</span></span><span class="apple-converted-space"><span style="font-size:12.0pt;color:black"> </span></span><span style="font-size:12.0pt;color:black">273914</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black">There will be a brief Q&A session at the end of the hour. Graduate students will have an opportunity to interact with the speaker in an informal setting during the "Meet the speaker" timeslot just after the talk.<span class="apple-converted-space"> </span></span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black"> </span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:#242424">Please see more info in the flyer<span class="apple-converted-space"> </span><a href="https://physics.ucmerced.edu/sites/physics.ucmerced.edu/files/event/SLAAM/shreyas_gokhale_slaam_v2.pdf" title="https://physics.ucmerced.edu/sites/physics.ucmerced.edu/files/event/SLAAM/shreyas_gokhale_slaam_v2.pdf"><span style="color:#0563C1">here</span></a><span class="apple-converted-space"> </span>and
in the text below:</span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><b><span style="color:black">Abstract</span></b></span><span class="contentpasted0"><span style="color:black">: </span></span><span style="font-size:12.0pt;color:black">Emergent nonreciprocal interactions in active condensed matter
can give rise to phases that are impossible to realize in equilibrium. In this talk, I will discuss our recent discovery and investigations of two stable macroscopically nonreciprocal states, one static and one oscillatory, in living chiral crystals of starfish
embryos. The two phases are characterized by two distinct mechanisms of parity breaking, namely, the spinning of individual embryos, and the precession of their axis of rotation. I will discuss how the oscillatory phase can be excited from the static phase
in a highly selective manner using external mechanical perturbations in the form of uniaxial compression steps. Our theoretical model predicts, and data analysis confirms that the two mechanisms of parity breaking retain distinctive dynamical signatures in
the dispersion relation of these nonequilibrium solids. In a broader context, our findings demonstrate how distinct mechanisms of symmetry breaking on the particle scale can govern steady state properties as well as excitations in active mechanical metamaterials.<span class="apple-converted-space"> </span></span><span style="color:black"><o:p></o:p></span></p>
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<b><span style="font-size:12.0pt;color:black">Speaker bio:<span class="apple-converted-space"> </span></span></b><span style="font-size:12.0pt;color:black;background:white">Shreyas Gokhale is a Physics of Living Systems (PLS) Postdoctoral Fellow in the Department
of Physics at MIT, working primarily with the groups of Prof. Nikta Fakhri and Prof. Jörn Dunkel. He is interested in understanding nonequilibrium self-organization in active matter using a combination of experiments, data analysis, and theory.<span class="apple-converted-space"> </span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black;background:white">Shreyas obtained a PhD in experimental soft matter physics from Prof. Ajay Sood’s group at the Indian Institute of Science, working in close collaboration with Prof. Rajesh Ganapathy at JNCASR. His
doctoral research focused on polycrystalline grain growth and glass formation in colloidal systems. He then moved to MIT as a Human Frontier Science Program (HFSP) Postdoctoral Fellow to study synchronization of bacterial population oscillations in Prof. Jeff
Gore’s group, before transitioning to active matter research.</span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">Hope to see you there! </span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black"> </span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">Best regards,</span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">Dan Beller</span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><span style="color:black">on behalf of the SLAAM organizing team</span></span><span style="font-size:12.0pt;color:black"><br>
</span><span class="contentpasted0"><span style="color:black">(Alexandra Tayar, Suraj Shankar, Kinjal Dasbiswas)</span></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span class="contentpasted0"><i><span style="color:black">To join the SLAAM mailing list, please sign up <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_forms_d_e_1FAIpQLScTyzEuuE7TfrrapgP4tzN-5FoPSqbBhURUxa9-2Dzc8USnY1IPzA_viewform&d=DwMFAw&c=WO-RGvefibhHBZq3fL85hQ&r=6T170XR90Za4-nl9r1e8-WfEJbvH5g5hJbA9UumqfWQ&m=NK4EGo1VvrDiYSxdvOUJXgCkEAzTrQzNpQi-P59LZiKL_lMA3briJm9KQh9Y3suN&s=3hc1lEhiJwBLtMEr12Z9K5XtZaVlEfOZKYXGtXCjRDg&e=" target="_blank" title="https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_forms_d_e_1FAIpQLScTyzEuuE7TfrrapgP4tzN-5FoPSqbBhURUxa9-2Dzc8USnY1IPzA_viewform&d=DwMFAw&c=WO-RGvefibhHBZq3fL85hQ&r=6T170XR90Za4-nl9r1e8-WfEJbvH5g5hJbA9UumqfWQ&m=NK4EGo1VvrDiYSxdvOUJXgCk"><span style="font-size:12.0pt;color:#0563C1">here</span></a>. If
you’re a postdoc interested in giving a SLAAM talk, we invite you to register your interest on that webform.</span></i></span><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Daniel Beller</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Assistant Professor</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Department of Physics and Astronomy</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">Johns Hopkins University</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">pages.jh.edu/dbeller3</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black">(he/him/his)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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