BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Holger Gies (Friedrich Schiller University Jena) DTSTART:20260120T140000Z DTEND:20260120T150000Z DTSTAMP:20260801T122303Z UID:IAMP_seminars/185 DESCRIPTION:Title: Quantum field theories of relativistic Luttinger fermions\nby Holger Gies (Friedrich Schiller University Jena) as part of One world IAMP mathematical physics seminar\n\n\nAbstract\nWe propose relativistic Lutti nger fermions as a new ingredient for\nthe construction of fundamental qua ntum field theories. The resulting fermion\nfields exhibit a canonical sca ling different from Dirac fermions and thus\nsupport the construction of n ovel relativistic and perturbatively\nrenormalizable\, interacting quantum field theories in four spacetime\ndimensions. In particular\, new asympto tically free self-interacting field\ntheories can be identified\, represen ting first examples of high-energy complete\nquantum field theories based on purely fermionic matter degrees of freedom. As\nexamples\, we discuss m odels which undergo dimensional transmutation and low-\nenergy condensate formation with scalar excitations on top of the condensate.\nWe observe th at a corresponding Yukawa model exhibits features similar to\nself-organiz ed criticality with a natural separation of low-energy observables\nfrom h igh energy initial scales without the need for any fine-tuning. We also\nc ritically examine the analytic structure of the Luttinger-fermionic\npropa gator in the various gapped phases and discuss possible consequences for\n asymptotic states.\n LOCATION:https://researchseminars.org/talk/IAMP_seminars/185/ END:VEVENT END:VCALENDAR