Large conditional single-photon cross-phase modulation
Abstract
Strong, coherent interactions between individual photons can revolutionize communication and computation technology. An interaction between two photons that changes their relative phase by 180° could serve as the basis for universal quantum logic. Realizing such interaction, however, has been a grand experimental challenge. We use atoms trapped between high-reflectivity mirrors to make two individual photons interact strongly with each other. We demonstrate that the phase of a light wave can be changed by up to 60° by a single light quanta. With today’s technology, this approach may enable the realization of deterministic quantum gates.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 12, 2016
- Source ID
- 10.1073/pnas.1524117113
Entities
People
- Kristin M Beck
- Mahdi Hosseini
- Vladan Vuletić
- Yiheng Duan
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- Massachusetts Institute of Technology
- National Science Foundation