Title :
Single-photon two-qubit entangled states: preparation and measurement
Author_Institution :
Dept. of Phys., Pohang Univ. of Sci. & Technol., South Korea
Abstract :
We implement experimentally a deterministic method to prepare and measure single-photon two-qubit entangled states, in which the polarization and the spatial modes of a single-photon each represent a quantum bit. All four single-photon Bell-states can be easily prepared and measured deterministically using linear optical elements alone.
Keywords :
Bell theorem; deterministic algorithms; light coherence; light polarisation; quantum cryptography; quantum entanglement; Bell-state; coherent optical effect; deterministic method; linear optical element; optical polarization; quantum bit; quantum cryptography; single-photon two-qubit entangled state; spatial mode; Cryptography; Interference; Laser beams; Laser excitation; Nonlinear optics; Optical polarization; Optical pumping; Photonic crystals; Pump lasers; Quantum entanglement;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1549053
