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Synchronized resistance to inhomogeneous magnetic field-induced dephasing of an image stored in a cold atomic ensemble
- Publication Year :
- 2021
- Publisher :
- arXiv, 2021.
-
Abstract
- Long-lived storage of arbitrary transverse multimodes is important for establishing a high-channel-capacity quantum network. Most of the pioneering works focused on atomic diffusion as the dominant impact on the retrieved pattern in an atom-based memory. In this work, we demonstrate that the unsynchronized Larmor precession of atoms in the inhomogeneous magnetic field dominates the distortion of the pattern stored in a cold-atom-based memory. We find that this distortion effect can be eliminated by applying a strong uniform polarization magnetic field. By preparing atoms in magnetically insensitive states, the destructive interference between different spin-wave components is diminished, and the stored localized patterns are synchronized further in a single spin-wave component; then, an obvious enhancement in preserving patterns for a long time is obtained. The reported results are very promising for studying transverse multimode decoherence in storage and high-dimensional quantum networks in the future.<br />Comment: 5 figures
- Subjects :
- Physics
Larmor precession
Quantum network
Quantum Physics
Quantum decoherence
Condensed matter physics
Field (physics)
Atomic Physics (physics.atom-ph)
Dephasing
FOS: Physical sciences
Optical storage
Polarization (waves)
Physics - Atomic Physics
Distortion
Quantum Physics (quant-ph)
Physics - Optics
Optics (physics.optics)
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....0c6a85885055c8ae5513e9218a4e63ac
- Full Text :
- https://doi.org/10.48550/arxiv.2102.02011