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MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
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Reversible quantum interface for tunable single-sideband modulation.

J Cviklinski1, J Ortalo, J Laurat

  • 1Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Ecole Normale Supérieure, CNRS, 4 place Jussieu, F75252 Paris Cedex 05, France.

Physical Review Letters
|October 15, 2008
PubMed
Summary
This summary is machine-generated.

Researchers mapped light

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Area of Science:

  • Quantum optics
  • Atomic physics

Background:

  • Electromagnetically induced transparency (EIT) creates a narrow frequency window for light propagation in atomic media.
  • Atomic ground states possess long-lived quantum coherences exploitable for information storage.

Purpose of the Study:

  • To experimentally demonstrate mapping the quantum state of light into atomic ground state coherences.
  • To investigate simultaneous storage and retrieval of noncommuting light variables.
  • To compare single sideband storage with symmetrical sideband storage within an EIT window.

Main Methods:

  • Utilizing electromagnetically induced transparency in cesium vapor.
  • Storing quantum information of a light beam into Zeeman coherences of the atomic ground state.
  • Experimental comparison of independent single sideband storage versus simultaneous symmetrical sideband storage.

Main Results:

  • Successfully mapped the quantum state of light into long-lived atomic Zeeman coherences.
  • Achieved noise-free storage and retrieval of two noncommuting light variables.
  • Demonstrated distinct storage behaviors for single versus symmetrical sidebands within the EIT window.

Conclusions:

  • Quantum state mapping into atomic coherences is experimentally feasible.
  • Simultaneous storage of noncommuting light variables is possible without added noise.
  • The method of storing sidebands impacts the storage fidelity and characteristics.