HQOC/ITAMP Joint Quantum Sciences Seminar
Wednesday, February 24, 2016
4:00 PM, Jefferson 250
Prof. Martin Zwierlein
"Strongly Interacting Fermi Gases of Atoms and Molecules"
The physics of strongly interacting Fermi gases, from neutron stars and complex materials
down to atomic nuclei, is often not even qualitatively understood. Ultracold Fermi gases
of atoms and molecules can realize systems with strong interactions in a pristine
environment, opening up a microscopic view at the scale of one interparticle spacing, and
the observation of dynamic processes in real time. I will discuss three ways to induce
strong interactions: In bulk Fermi gases, the use of Feshbach resonances enables the
formation of fermionic superfluids with unitarity limited interactions. A novel type of
box potential directly yields the equation of state of state of the homogeneous, unitary
Fermi gas. Another way to induce strong interactions in Fermi gases is their confinement
into optical lattices. I will describe our Fermi gas microscope, allowing for the
observation of fermions at the single-atom, single-site resolved level. As a new direction
I will present the creation of stable fermionic molecules at ultralow temperatures
featuring strong dipole moments. We demonstrate quantum control of rotational and
hyperfine states and Ramsey coherence times on the order of one second, spurring hopes for
the molecules’ future use in quantum information applications and the realization of novel
states of matter.
Refreshments Served from 4:00-4:30 PM
Guest Presentation from 4:30-6:00 PM
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Clare Ploucha
Faculty Assistant to Professors Lukin & Greiner and their labs
Department of Physics
17 Oxford St., Lyman 324A
Cambridge, MA 02138
P. (617) 496-2544
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