{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/127486"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/127486","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Quantum beating of rubidium: Interference between atomic coherences and long range atom-atom interactions","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01","abstract_has_math":false,"creators":["Reboli, Thomas O"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Eden, J. Gary","Dragic, Peter","Lorenz, Virginia","Goldschmidt, Elizabeth","Zhao, Yang"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-12","date_published":"2024-12","updated_at":"2026-07-22T22:25:04Z","subjects":["Quantum Beating","Quantum Beat Spectroscopy","Terahertz Quantum Beats","Ultrafast","Alkali","Rubidium","Wave Packet Dynamics","Four Wave Mixing","Wave Packet Interference","Long Range Interactions","Potential Energy Curves","Fano Resonances","Coherence Control"],"languages":["en","eng"],"rights":["Copyright 2024 Thomas Reboli"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/127486","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eden, J. Gary","Dragic, Peter","Lorenz, Virginia","Goldschmidt, Elizabeth","Zhao, Yang"]},{"key":"dc:creator","label":"Author","values":["Reboli, Thomas O"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-12","2024-12-04"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Quantum Beating","Quantum Beat Spectroscopy","Terahertz Quantum Beats","Ultrafast","Alkali","Rubidium","Wave Packet Dynamics","Four Wave Mixing","Wave Packet Interference","Long Range Interactions","Potential Energy Curves","Fano Resonances","Coherence Control"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Thomas Reboli"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/127486"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01","The student, Thomas Reboli, accepted the attached license on 2024-12-03 at 09:57.","The student, Thomas Reboli, submitted this Dissertation for approval on 2024-12-03 at 10:20.","This Dissertation was approved for publication on 2024-12-04 at 07:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21469 on 2025-03-28 at 14:55:34","Wave packets are established among the $7S_{1/2}$ and $5D_{5/2}$ states of atomic rubidium and are probed via terahertz pump-probe quantum beat spectroscopy. Interferences between the $5D_{5/2}$--$5P_{3/2}$ and $5P_{3/2}$--$5S_{1/2}$ coherences, occurring at 386.4 and 384.2~THz respectively, are observed at their difference frequency of 2.1~THz. Fano windows are observed in the spectra of this difference frequency, which are controllable by varying the pump-probe crossing angle and background rubidium number density. These tunable spectral features have present likely evidence of control over multiple wave packet decay channels, with the ability to selectively drive and interfere these processes through nonlinear excitation mechanisms. To further explore the possible applications of this unique form of spectroscopy, measurements of quantum beats at 18.225~THz occurring from the $7S_{1/2}$ and $5D_{5/2}$ states of rubidium were taken in the presence of varying pressures of argon, krypton, and xenon. Observed broadening and frequency shifting rates were calculated and treated with a classical impact theory. To our knowledge, this is the first application of this theory to a quantum system in general, and allowed for the investigation of rubidium-rare gas interaction forces at both small and large inter-atomic potentials by monitoring quantum beat spectra."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Quantum beating of rubidium: Interference between atomic coherences and long range atom-atom interactions"]}]}],"canonical_facts":{"dc:contributor":["Eden, J. Gary","Dragic, Peter","Lorenz, Virginia","Goldschmidt, Elizabeth","Zhao, Yang"],"dc:creator":["Reboli, Thomas O"],"dc:date":["2024-12","2024-12-04"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01","The student, Thomas Reboli, accepted the attached license on 2024-12-03 at 09:57.","The student, Thomas Reboli, submitted this Dissertation for approval on 2024-12-03 at 10:20.","This Dissertation was approved for publication on 2024-12-04 at 07:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21469 on 2025-03-28 at 14:55:34","Wave packets are established among the $7S_{1/2}$ and $5D_{5/2}$ states of atomic rubidium and are probed via terahertz pump-probe quantum beat spectroscopy. Interferences between the $5D_{5/2}$--$5P_{3/2}$ and $5P_{3/2}$--$5S_{1/2}$ coherences, occurring at 386.4 and 384.2~THz respectively, are observed at their difference frequency of 2.1~THz. Fano windows are observed in the spectra of this difference frequency, which are controllable by varying the pump-probe crossing angle and background rubidium number density. These tunable spectral features have present likely evidence of control over multiple wave packet decay channels, with the ability to selectively drive and interfere these processes through nonlinear excitation mechanisms. To further explore the possible applications of this unique form of spectroscopy, measurements of quantum beats at 18.225~THz occurring from the $7S_{1/2}$ and $5D_{5/2}$ states of rubidium were taken in the presence of varying pressures of argon, krypton, and xenon. Observed broadening and frequency shifting rates were calculated and treated with a classical impact theory. To our knowledge, this is the first application of this theory to a quantum system in general, and allowed for the investigation of rubidium-rare gas interaction forces at both small and large inter-atomic potentials by monitoring quantum beat spectra."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/127486"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Thomas Reboli"],"dc:subject":["Quantum Beating","Quantum Beat Spectroscopy","Terahertz Quantum Beats","Ultrafast","Alkali","Rubidium","Wave Packet Dynamics","Four Wave Mixing","Wave Packet Interference","Long Range Interactions","Potential Energy Curves","Fano Resonances","Coherence Control"],"dc:title":["Quantum beating of rubidium: Interference between atomic coherences and long range atom-atom interactions"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:04Z"}