Exploring Hilbert space: Accurate characterization of quantum information

Andrew G. White, D. F.V. James, W. J. Munro, P. G. Kwiat

Research output: Contribution to journalArticlepeer-review


The creation of a wide range of quantum states with controllable degrees of entanglement and entropy using an optical two-qubit source was reported. The measures of entanglement and entropy determined from tomographically derived density matrices were used to characterize the quantum states. The quantum states were obtained via spontaneous downconversion where a pump photon passed through a nonlinear crystal was converted into a pair of lower-energy photons.

Original languageEnglish (US)
Article number012301
Pages (from-to)123011-123014
Number of pages4
JournalPhysical Review A. Atomic, Molecular, and Optical Physics
Issue number1
StatePublished - Jan 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Exploring Hilbert space: Accurate characterization of quantum information'. Together they form a unique fingerprint.

Cite this