Applications of Single-Photon Two-Qubit Quantum Logic to the Quantum Information Science
Name
Taehyun Kim-TR724.pdf
Size
964.03 KB
Format
Adobe PDF
Checksum (MD5)
f715f08f0a9756379b0263e98fe9c1de
Author(s)
Kim, Taehyun
Date Issued
June 10, 2008
Series/Report no.
Technical Report (Massachusetts Institute of Technology, Research Laboratory of Electronics);
#724
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 in-
terferometer 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 di®erent 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 mea-
surements, entanglement distillation (Schmidt projection), and a physical simulation
of the entangling-probe attack on the Bennett-Brassard 1984 (BB84) quantum key
distribution (QKD).
Description
Thesis Supervisor: Franco N. C. Wong
Title: Senior Research Scientist
Thesis Supervisor: Vladan Vuletic
Title: Associate Professor
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Persistent DSpace Link
