Optically Generated 2-Dimensional Photonic Cluster State from Coupled Quantum Dots

Abstract

We propose a method to generate a two-dimensional cluster state of polarization encoded photonic qubits from two coupled quantum dot emitters. We combine the recent proposal for generating 1-dimensional cluster state strings from a single dot, with a new proposal for an optically induced conditional phase (CZ) gate between the two quantum dots. The entanglement between the two quantum dots translates to entanglement between the two photonic cluster state strings. Further inter-pair coupling of the quantum dots using cavities and waveguides can lead to a 2-dimensional cluster sheet. Detailed analysis of errors indicates that our proposal is feasible with current technology. Crucially, the emitted photons need not have identical frequencies, and so there are no constraints on the resonance energies for the quantum dots, a standard problem for such sources.

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Document Details

Document Type
Technical Report
Publication Date
Mar 12, 2010
Accession Number
ADA522728

Entities

People

  • Netanel Lindner
  • Sophia E. Economou
  • Terry Rudolph

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Angular Momentum
  • Circular Polarization
  • Couplings
  • Demographic Cohorts
  • Frequency
  • Ground State
  • Magnetic Fields
  • Polarization
  • Precession
  • Quantum Circuits
  • Quantum Computing
  • Quantum Dots
  • Quantum Information
  • Spin States
  • Standards
  • Total Angular Momentum
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computer Programming and Software Development.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots