Quantum Memory with a Single Photon in a Cavity
- 28 July 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (4), 769-772
- https://doi.org/10.1103/physrevlett.79.769
Abstract
The quantum information carried by a two-level atom was transferred to a high- cavity and, after a delay, to another atom. We realized in this way a quantum memory made of a field in a superposition of 0 and 1 photon Fock states. We measured the “holding time” of this memory corresponding to the decay of the field intensity or amplitude at the single photon level. This experiment implements a step essential for quantum information processing operations.
Keywords
This publication has 19 references indexed in Scilit:
- Quantum Computing: Dream or Nightmare?Physics Today, 1996
- The physical nature of informationPhysics Letters A, 1996
- Realistic lower bounds for the factorization time of large numbers on a quantum computerPhysical Review A, 1996
- Simple cavity-QED two-bit universal quantum logic gate: The principle and expected performancesPhysical Review A, 1995
- Quantum ComputationScience, 1995
- Realizable Universal Quantum Logic GatesPhysical Review Letters, 1995
- Quantum Computations with Cold Trapped IonsPhysical Review Letters, 1995
- Conditional Quantum Dynamics and Logic GatesPhysical Review Letters, 1995
- Maintaining coherence in quantum computersPhysical Review A, 1995
- Bell’s theorem without inequalitiesAmerican Journal of Physics, 1990