Unknown

Dataset Information

0

A wavelength-convertible quantum memory: Controlled echo.


ABSTRACT: Quantum coherence control is reinvestigated for a new physical insight in quantum nonlinear optics and applied for a wavelength-convertible quantum memory in a solid ensemble whose spin states are inhomogeneously broadened. Unlike typical atomic media whose spin decays are homogeneous, a spin inhomogeneously broadened solid ensemble requires a counter-intuitive quantum coherence control to avoid spontaneous emission-caused quantum noises. Such a quantum coherence control in a solid ensemble satisfying both near perfect retrieval efficiency and ultralong photon storage offers a solid framework to quantum repeaters, scalable qubit generations, quantum cryptography, and highly sensitive magnetometry. Here, the basic physics of the counter-intuitive quantum coherence control is presented not only for a fundamental understanding of collective ensemble phase control but also for a coherence conversion mechanism between optical and spin states involving Raman rephasing.

SUBMITTER: Ham BS 

PROVIDER: S-EPMC6048175 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications

A wavelength-convertible quantum memory: Controlled echo.

Ham Byoung S BS  

Scientific reports 20180716 1


Quantum coherence control is reinvestigated for a new physical insight in quantum nonlinear optics and applied for a wavelength-convertible quantum memory in a solid ensemble whose spin states are inhomogeneously broadened. Unlike typical atomic media whose spin decays are homogeneous, a spin inhomogeneously broadened solid ensemble requires a counter-intuitive quantum coherence control to avoid spontaneous emission-caused quantum noises. Such a quantum coherence control in a solid ensemble sati  ...[more]

Similar Datasets

| S-EPMC5550504 | biostudies-literature
| S-EPMC8213715 | biostudies-literature
| S-EPMC5823948 | biostudies-literature
| S-EPMC7721887 | biostudies-literature
| S-EPMC6211794 | biostudies-literature
| S-EPMC5602660 | biostudies-literature
| S-EPMC3464493 | biostudies-other
| S-EPMC5433560 | biostudies-literature
| S-EPMC6644928 | biostudies-literature
| S-EPMC4987521 | biostudies-literature