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<p class="MsoPlainText"><span style="font-size:11.0pt">Please take note of Colloquium taking place today, Tuesday,
<span style="color:black">February 5</span><span style="color:black">, 2013</span> at 4:00 PM in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45 PM. Details concerning the talk are as follows:<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Speaker: <span style="color:black">
Martin Zwierlein - MIT</span><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Date: <span style="color:black">
Tuesday, </span><span style="color:black">February 5</span><span style="color:black">, 2013</span><o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Time: 4:00 PM<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Place: The Robert Smith Seminar Room<span style="color:black"><o:p></o:p></span></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Title:
</span><span lang="EN" style="font-size:11.0pt">“A Little Big Bang: Strong Interactions in Ultracold Fermi Gases”<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt">Abstract: </span>
<span lang="EN" style="font-size:11.0pt;color:#222222">Fermions, particles with half-integer spin such as electrons, protons and neutrons, are the building blocks of matter. When fermions strongly interact, complex collective behavior emerges, as seen for electrons
in high-temperature superconductors, for neutrons in neutron stars or for quarks in the primordial matter of the early universe. Ultracold Fermi gases of atoms are a new type of strongly interacting fermionic matter that can be created and studied in the laboratory
with exquisite control. Non-equilibrium processes are observable in real time. For example, we can study the collision of "spin up" and "spin down" Fermi gases with resonant, quantum limited interactions. In equilibrium, direct absorption images of the trapped
atomic gas reveal the entire thermodynamics of the system, including the transition into the superfluid state. The specific heat of the gas displays a characteristic lambda-like feature at the critical temperature of 17% of the Fermi temperature. Scaled to
the density of electrons, superfluidity would occur far above room temperature. We were recently able to follow the evolution of fermion pairing from three to two dimensions, connecting quite directly to models of layered superconductors. Our measurements
in and out of equilibrium provide benchmarks for current many-body theories and will help to understand other strongly interacting Fermi systems, such as high-temperature superconductors and neutron stars.<o:p></o:p></span></p>
<p class="MsoPlainText"><span style="font-size:11.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif"">The website for the Colloquium is
<a href="https://physics.osu.edu/physics-colloquium-schedule">https://physics.osu.edu/physics-colloquium-schedule</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif""><o:p> </o:p></span></p>
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