We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Quantum Process Tomography of an Optically-Controlled Kerr Non-linearity.
- Authors
Kupchak, Connor; Rind, Samuel; Jordaan, Bertus; Figueroa, Eden
- Abstract
Any optical quantum information processing machine would be comprised of fully-characterized constituent devices for both single state manipulations and tasks involving the interaction between multiple quantum optical states. Ideally for the latter, would be an apparatus capable of deterministic optical phase shifts that operate on input quantum states with the action mediated solely by auxiliary signal fields. Here we present the complete experimental characterization of a system designed for optically controlled phase shifts acting on single-photon level probe coherent states. Our setup is based on a warm vapor of rubidium atoms under the conditions of electromagnetically induced transparency with its dispersion properties modified through the use of an optically triggered N-type Kerr non-linearity. We fully characterize the performance of our device by sending in a set of input probe states and measuring the corresponding output via time-domain homodyne tomography and subsequently performing the technique of coherent state quantum process tomography. This method provides us with the precise knowledge of how our optical phase shift will modify any arbitrary input quantum state engineered in the mode of the reconstruction.
- Subjects
KERR electro-optical effect; OPTICAL quantum computing; TOMOGRAPHY; ELECTROMAGNETISM; QUANTUM states
- Publication
Scientific Reports, 2015, p16581
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep16581