BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//6.4.7.2//EN TZID:Europe/Paris X-WR-TIMEZONE:Europe/Paris BEGIN:VEVENT UID:0-1061@lptms.universite-paris-saclay.fr DTSTART;TZID=Europe/Paris:20251124T143000 DTEND;TZID=Europe/Paris:20251124T160000 DTSTAMP:20251120T161846Z URL:http://www.lptms.universite-paris-saclay.fr/seminars/informal-quantum- seminar-natalia-chepiga-delft-university-of-technology/ SUMMARY:Informal quantum seminar: Natalia Chepiga (Delft University of Tech nology) - Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n° 530 - 24 Nov 25 14:30 DESCRIPTION:Infinite randomness criticality and localization of the floatin g phase in arrays of Rydberg atoms trapped with non-perfect tweezers\nNata lia Chepiga (Delft University of Technology)\n \;\n\nThe success of Ry dberg-based platforms originates from the precise control of lattice geome tries provided by optical tweezers\, which allows access to a wide range o f synthetic quantum phases. Experiments on one-dimensional arrays have sti mulated tremendous progress in understanding quantum phase transitions int o crystalline phases. However\, the finite width of tweezers introduces sm all variations in interatomic distances\, leading to quenched disorder in the interactions. In this letter\, we numerically study how such disorder alters the nature of two critical regimes observed in experiments. Firstly \, following experimental protocols\, we analyze Kibble-Zurek dynamics and find a crossover from the clean Ising transition to the infinite-randomne ss fixed point as system size and disorder strength increase. Secondly\, w e show that the floating phase (an incommensurate Luttinger liquid phase e merging at stronger interactions) is localized by the disorder\, yet prese rves short-range incommensurate correlations with the same leading wave ve ctor. Our results clearly reveal an additional technical challenge in the scalability of Rydberg-based quantum simulators. \n\n \; CATEGORIES:seminars LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53 0\, rue André Riviere\, Orsay\, 91405\, France X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\ , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°530:geo:0,0 END:VEVENT BEGIN:VTIMEZONE TZID:Europe/Paris X-LIC-LOCATION:Europe/Paris BEGIN:STANDARD DTSTART:20251026T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET END:STANDARD END:VTIMEZONE END:VCALENDAR