{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/45447"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/45447","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Applications of single-photon two-qubit quantum logic to the quantum information science","abstract":"In this thesis, I describe demonstration of various quantum information processing tasks using single-photon two-qubit (SPTQ) quantum logic. As an initial state of those tasks, I used various entangled photon pairs, and I describe development of a polarization entangled photon pair source based on a collinear spontaneous parametric down conversion (SPDC) process within a bidirectionally pumped periodically-poled potassium titanyl phosphate (PPKTP) crystal embedded in a polarization Sagnac interferometer and generation of hyper-entangled photon pairs that are simultaneously entangled in the polarization and momentum degrees of freedom. I also introduce deterministic quantum gates based on SPTQ quantum logic where the polarization and momentum degrees of freedom in a single photon are used as two qubits. By applying SPTQ quantum logic to different entangled states, I demonstrate several quantum information tasks such as transferring entanglement from the momentum qubits to the polarization qubits, SPTQ-based complete polarization Bell state measurements, entanglement distillation (Schmidt projection), and a physical simulation of the entangling-probe attack on the Bennett Brassard 1984 (BB84) quantum key distribution (QKD).","abstract_html":"In this thesis, I describe demonstration of various quantum information processing tasks using single-photon two-qubit (SPTQ) quantum logic. As an initial state of those tasks, I used various entangled photon pairs, and I describe development of a polarization entangled photon pair source based on a collinear spontaneous parametric down conversion (SPDC) process within a bidirectionally pumped periodically-poled potassium titanyl phosphate (PPKTP) crystal embedded in a polarization Sagnac interferometer and generation of hyper-entangled photon pairs that are simultaneously entangled in the polarization and momentum degrees of freedom. I also introduce deterministic quantum gates based on SPTQ quantum logic where the polarization and momentum degrees of freedom in a single photon are used as two qubits. By applying SPTQ quantum logic to different entangled states, I demonstrate several quantum information tasks such as transferring entanglement from the momentum qubits to the polarization qubits, SPTQ-based complete polarization Bell state measurements, entanglement distillation (Schmidt projection), and a physical simulation of the entangling-probe attack on the Bennett Brassard 1984 (BB84) quantum key distribution (QKD).","abstract_has_math":false,"creators":["Kim, Taehyun"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Dept. of Physics.","school":null,"contributors":[],"advisors":["Franco N.C. Wong and Vladan Vuletic."],"committee_chairs":[],"committee_members":[],"year":2008,"date_issued":"2008","date_published":"2008","updated_at":"2026-07-22T22:20:55Z","subjects":["Physics."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/45447","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Franco N.C. Wong and Vladan Vuletic."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Dept. of Physics."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. 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As an initial state of those tasks, I used various entangled photon pairs, and I describe development of a polarization entangled photon pair source based on a collinear spontaneous parametric down conversion (SPDC) process within a bidirectionally pumped periodically-poled potassium titanyl phosphate (PPKTP) crystal embedded in a polarization Sagnac interferometer and generation of hyper-entangled photon pairs that are simultaneously entangled in the polarization and momentum degrees of freedom. I also introduce deterministic quantum gates based on SPTQ quantum logic where the polarization and momentum degrees of freedom in a single photon are used as two qubits. By applying SPTQ quantum logic to different entangled states, I demonstrate several quantum information tasks such as transferring entanglement from the momentum qubits to the polarization qubits, SPTQ-based complete polarization Bell state measurements, entanglement distillation (Schmidt projection), and a physical simulation of the entangling-probe attack on the Bennett Brassard 1984 (BB84) quantum key distribution (QKD)."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Ph.D."]},{"key":"dc:title","label":"Title","values":["Applications of single-photon two-qubit quantum logic to the quantum information science"]}]}],"canonical_facts":{"dc:contributor.advisor":["Franco N.C. Wong and Vladan Vuletic."],"dc:contributor.department":["Massachusetts Institute of Technology. Dept. of Physics."],"dc:contributor.other":["Massachusetts Institute of Technology. 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I also introduce deterministic quantum gates based on SPTQ quantum logic where the polarization and momentum degrees of freedom in a single photon are used as two qubits. By applying SPTQ quantum logic to different entangled states, I demonstrate several quantum information tasks such as transferring entanglement from the momentum qubits to the polarization qubits, SPTQ-based complete polarization Bell state measurements, entanglement distillation (Schmidt projection), and a physical simulation of the entangling-probe attack on the Bennett Brassard 1984 (BB84) quantum key distribution (QKD)."],"dc:description.degree":["Ph.D."],"dc:identifier.uri":["http://hdl.handle.net/1721.1/45447"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Physics."],"dc:title":["Applications of single-photon two-qubit quantum logic to the quantum information science"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:20:55Z"}