{"id":{"repo_id":"chalmers","oai_identifier":"oai:odr.chalmers.se:20.500.12380/311465"},"canonical_url":"https://search.dev.ndltd.org/etd/chalmers/oai:odr.chalmers.se:20.500.12380/311465","repository":{"repo_id":"chalmers","name":"Chalmers University of Technology","base_url":"https://odr.chalmers.se/oai/request"},"display":{"title":"Toward Stabilization of the Quantum Pair-Cat State on Superconducting Circuits Platform","abstract":"In this thesis, we introduce a quantum circuit for stabilizing an error-correctable two-mode quantum cat state, known as the pair-cat state. Using Foster decomposition, we derive experimentally feasible circuit parameters that engineer a dominant fifth-order flux nonlinearity, yielding the effective Hamiltonian required for pair-cat state generation. We further present implementations of logical X rotations, show casing the possibility of rotating around the Bloch sphere and encoding quantum information.","abstract_html":"In this thesis, we introduce a quantum circuit for stabilizing an error-correctable two-mode quantum cat state, known as the pair-cat state. Using Foster decomposition, we derive experimentally feasible circuit parameters that engineer a dominant fifth-order flux nonlinearity, yielding the effective Hamiltonian required for pair-cat state generation. We further present implementations of logical X rotations, show casing the possibility of rotating around the Bloch sphere and encoding quantum information.","abstract_has_math":false,"creators":["Jesper, Lagerberg"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Chalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskap (MC2)","school":null,"contributors":[],"advisors":["Khanahmadi, Maryam"],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026","date_published":"2026","updated_at":"2026-08-21T16:43:26Z","subjects":["pair-cat, non-Gaussian, quantum, superconducting"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/20.500.12380/311465","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"source_record":{"url":"https://odr.chalmers.se/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Aodr.chalmers.se%3A20.500.12380%2F311465","prefix":"dim"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Chalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskap (MC2)","Chalmers University of Technology / Department of Microtechnology and Nanoscience (MC2)"]},{"key":"dc:contributor.supervisor","label":"Supervisor","values":["Khanahmadi, Maryam"]},{"key":"dc:creator","label":"Author","values":["Jesper, Lagerberg"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-06-23T12:40:41Z"]},{"key":"dc:date.issued","label":"Date","values":["2026"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["pair-cat, non-Gaussian, quantum, superconducting"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/20.500.12380/311465"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In this thesis, we introduce a quantum circuit for stabilizing an error-correctable two-mode quantum cat state, known as the pair-cat state. Using Foster decomposition, we derive experimentally feasible circuit parameters that engineer a dominant fifth-order flux nonlinearity, yielding the effective Hamiltonian required for pair-cat state generation. We further present implementations of logical X rotations, show casing the possibility of rotating around the Bloch sphere and encoding quantum information."]},{"key":"dc:title","label":"Title","values":["Toward Stabilization of the Quantum Pair-Cat State on Superconducting Circuits Platform"]}]}],"canonical_facts":{"dc:contributor.department":["Chalmers tekniska högskola / Institutionen för mikroteknologi och nanovetenskap (MC2)","Chalmers University of Technology / Department of Microtechnology and Nanoscience (MC2)"],"dc:contributor.supervisor":["Khanahmadi, Maryam"],"dc:creator":["Jesper, Lagerberg"],"dc:date.accessioned":["2026-06-23T12:40:41Z"],"dc:date.issued":["2026"],"dc:description.abstract":["In this thesis, we introduce a quantum circuit for stabilizing an error-correctable two-mode quantum cat state, known as the pair-cat state. 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