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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping
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Quantum manipulation in a Josephson light-emitting diode.

Fabian Hassler1, Yuli V Nazarov, Leo P Kouwenhoven

  • 1Instituut-Lorentz, Universiteit Leiden, PO Box 9506, 2300 RA Leiden, The Netherlands.

Nanotechnology
|June 24, 2010
PubMed
Summary
This summary is machine-generated.

The Josephson light-emitting diode (LED) is suitable for quantum manipulation. This device enables on-demand entangled photon pair production and two-qubit gate operations, linking particle spin with photon polarization.

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Area of Science:

  • Quantum optics
  • Solid-state physics
  • Quantum information science

Background:

  • The Josephson light-emitting diode (LED) is a novel quantum device.
  • Quantum manipulation requires efficient and controllable quantum systems.

Purpose of the Study:

  • To evaluate the Josephson LED's potential for quantum manipulation.
  • To explore its capabilities in generating entangled photons and performing quantum logic operations.

Main Methods:

  • Theoretical assessment of the Josephson LED's quantum properties.
  • Analysis of its potential for generating entangled photon pairs.
  • Investigation of its suitability for implementing two-qubit gates.

Main Results:

  • The Josephson LED facilitates on-demand production of entangled photon pairs.
  • The device can be operated as a two-qubit gate.
  • It allows for entanglement between particle spin and photon polarization.
  • Spin measurement via polarization measurement is feasible.

Conclusions:

  • The Josephson LED is a promising platform for quantum information processing.
  • Its versatility supports applications in quantum computing and communication.
  • The device offers a new avenue for controlling and measuring quantum states.