Published October 2005
| Version v1
Journal article
Long-range interactions and entanglement of slow single-photon pulses
- 1. Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)
- 2. Institute of Electronic Structure and Laser, FORTH, GR-71110 Heraklion, Crete (Greece)
- 3. Fachbereich Physik, Universitaet Kaiserslautern, D-67663 Kaiserslautern (Germany)
Description
We show that very large nonlocal nonlinear interactions between pairs of colliding slow-light pulses can be realized in atomic vapors in the regime of electromagnetically induced transparency. These nonlinearities are mediated by strong, long-range dipole-dipole interactions between Rydberg states of the multilevel atoms in a ladder configuration. In contrast to previously studied schemes, this mechanism can yield a homogeneous conditional phase shift of π even for weakly focused single-photon pulses, thereby allowing a deterministic realization of the photonic phase gate
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.72.043803;
- arXiv
- arXiv:quant-ph/0503071v1;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 72
- Journal Issue
- 4
- Journal Page Range
- p. 043803-043803.4
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37031058
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ATOMS; DIPOLES; INTERACTION RANGE; NONLINEAR PROBLEMS; OPACITY; OPTICS; PHASE SHIFT; PHOTONS; PULSES; QUANTUM ENTANGLEMENT; RYDBERG STATES; VAPORS; VISIBLE RADIATION
- Descriptors DEC
- BOSONS; DISTANCE; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; EXCITED STATES; FLUIDS; GASES; MASSLESS PARTICLES; MULTIPOLES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS
Optional Information
- Notes
- (c) 2005 The American Physical Society