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SUMMARY:Quantum mixtures in a box - Dr Christoph Eigen\, AMOP\, Cavendish 
 Laboratory
DTSTART:20251202T100000Z
DTEND:20251202T104500Z
UID:TALK241447@talks.cam.ac.uk
CONTACT:Leona Hope-Coles
DESCRIPTION:The quest for understanding quantum matter that is either stro
 ngly interacting or out of equilibrium is at the forefront of modern physi
 cs. Since its inception\, the field of ultracold atoms has provided an ide
 al setting for exploring quantum many-body phenomena\, with key ingredient
 s including the pristine control of atom-trapping geometries\, the ability
  to coherently manipulate the atom’s internal states\, the experimentall
 y resolvable intrinsic timescales\, and the unique ability to tune the int
 erparticle interactions using Feshbach resonances. The advent of optical b
 ox traps offered pristine samples with homogeneous densities. This allowed
  more direct connections with many-body theories and qualitatively new mea
 surements\, and has revolutionized single-component quantum simulators for
  fundamental precision many-body physics. Transposing such box traps to bo
 th bosonic and fermionic spin mixtures recently has also hinted at their a
 dvantages in the vast realm of quantum mixtures. \n\nIn this talk\, I will
  first showcase our work over the last decade using box-trapped single-com
 ponent 39K Bose gases (featuring exquisite control over the interparticle 
 interactions)\, with topics explored ranging from extreme wave phenomena t
 o strongly correlated fluids. I will then detail our recent first experime
 nts using homogeneous bosonic spin mixtures\, where we studied the quantum
  dynamics of Bose polarons\, which are paradigmatic quasiparticles that ca
 n form when impurities are immersed in a Bose–Einstein condensate. I wil
 l conclude with an outlook of my future research plans\, where I envision 
 a next-generation quantum simulator based on box-trapped quantum mixtures 
 to investigate fundamental phenomena driven by quantum statistics\, study 
 far-from-equilibrium dynamics of open quantum systems\, and explore the ph
 ase diagrams of exotic many-body systems with unconventional interactions.
 \n
LOCATION:Seminar Room C\, RDC\, Cavendish Laboratory
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