Quantum Information Processing with Single Photons and Atomic Ensembles in Microwave Coplanar Waveguide Resonators
Abstract
We show that pairs of atoms optically excited to the Rydberg states can strongly interact with each other via effective long-range dipole-dipole or van der Waals interactions mediated by their nonresonant coupling to a common microwave field mode of a superconducting coplanar waveguide cavity. These cavity mediated interactions can be employed to generate single photons and to realize in a scalable configuration a universal phase gate between pairs of single photon pulses propagating or stored in atomic ensembles in the regime of electromagnetically induced transparency.
- Publication:
-
Physical Review Letters
- Pub Date:
- May 2008
- DOI:
- 10.1103/PhysRevLett.100.170501
- arXiv:
- arXiv:0802.2154
- Bibcode:
- 2008PhRvL.100q0501P
- Keywords:
-
- 03.67.Lx;
- 32.80.Ee;
- 37.30.+i;
- 42.50.Gy;
- Quantum computation;
- Rydberg states;
- Atoms molecules and ions in cavities;
- Effects of atomic coherence on propagation absorption and amplification of light;
- electromagnetically induced transparency and absorption;
- Quantum Physics
- E-Print:
- Phys. Rev. Lett. 100, 170501 (2008)