Stationary pulses of light in an atomic medium

@article{Bajcsy2003StationaryPO,
  title={Stationary pulses of light in an atomic medium},
  author={Michal Bajcsy and A. S. Zibrov and Mikhail D. Lukin},
  journal={Nature},
  year={2003},
  volume={426},
  pages={638-641}
}
Physical processes that could facilitate coherent control of light propagation are under active exploration. In addition to their fundamental interest, these efforts are stimulated by practical possibilities, such as the development of a quantum memory for photonic states. Controlled localization and storage of photonic pulses may also allow novel approaches to manipulating of light via enhanced nonlinear optical processes. Recently, electromagnetically induced transparency was used to reduce… 
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References

SHOWING 1-10 OF 34 REFERENCES
Observation of coherent optical information storage in an atomic medium using halted light pulses
TLDR
A theoretical model is presented that reveals that the system is self-adjusting to minimize dissipative loss during the ‘read’ and ‘write’ operations, anticipating applications of this phenomenon for quantum information processing.
Manipulating light pulses via dynamically controlled photonic band gap.
TLDR
Dynamic control of a band gap can be used to coherently convert a propagating light pulse into a stationary excitation with nonvanishing photonic component with high efficiency and negligible noise even at the level of few-photon quantum fields thereby facilitating possible applications in quantum nonlinear optics and quantum information.
Light speed reduction to 17 metres per second in an ultracold atomic gas
Techniques that use quantum interference effects are being actively investigated to manipulate the optical properties of quantum systems. One such example is electromagnetically induced transparency,
Controlling photons using electromagnetically induced transparency
TLDR
Theoretical and experimental work has demonstrated that this phenomenon can be used to slow down light pulses dramatically, or even bring them to a complete halt.
Electromagnetically induced transparency with matched pulses.
  • Harris
  • Physics
    Physical review letters
  • 1993
TLDR
It is found that an ensemble of atoms establishes transparency through a strong nonlinear interaction which, for a lambda system, tends to generate a matching temporal envelope on the complementary transition.
Nonlinear Optics at Low Light Levels
The recent observation by Hau and colleagues [1] of ultraslow light propagation (17 mys) motivates the study of nonlinear optical processes under conditions where slow group velocity is a dominant
Atomic Memory for Correlated Photon States
We experimentally demonstrate emission of two quantum-mechanically correlated light pulses with a time delay that is coherently controlled via temporal storage of photonic states in an ensemble of
Dark-state polaritons in electromagnetically induced transparency
TLDR
This work identifies form-stable coupled excitations of light and matter ("dark-state polaritons") associated with the propagation of quantum fields in electromagnetically induced transparency that can be controlled by an external coherent field as the pulse propagates.
Stopping light via hot atoms.
TLDR
It is proved that it is possible to freeze a light pulse or even to make its group velocity negative in a coherently driven Doppler broadened atomic medium via electromagnetically induced transparency (EIT).
Nonlinear optics and quantum entanglement of ultraslow single photons
Two light pulses propagating with slow group velocities in a coherently prepared atomic gas exhibit dissipation-free nonlinear coupling of an unprecedented strength. This enables a single-photon
...
...