Experimental interference of independent photons.

  title={Experimental interference of independent photons.},
  author={R. Kaltenbaek and B. Blauensteiner and M. Zukowski and M. Aspelmeyer and A. Zeilinger},
  journal={Physical review letters},
  volume={96 24},
Interference of photons emerging from independent sources is essential for modern quantum-information processing schemes, above all quantum repeaters and linear-optics quantum computers. We report an observation of nonclassical interference of two single photons originating from two independent, separated sources, which were actively synchronized with a rms timing jitter of 260 fs. The resulting (two-photon) interference visibility was (83+/-4)%. 

Figures and Topics from this paper

Independent telecom-fiber sources of quantum indistinguishable single photons
Quantum-mechanically indistinguishable photons produced by independent (or equivalently, mutually phase incoherent) light sources are essential for distributed quantum information processingExpand
Toward quantum interference of photons from independent quantum dots
The authors present steps toward the experimental realization of indistinguishable single photon sources based on independent unstrained GaAs quantum dots (QDs), which are embedded in planar cavitiesExpand
Quantum interference with photon pairs using two micro-structured fibres
We demonstrate a quantum interference experiment between two photons coming from non-degenerate pairs created by four-wave mixing in two separated micro-structured fibres. When the two heraldedExpand
Effects of frequency correlation in linear optical entangling gates operated with independent photons
Bose-Einstein coalescence of independent photons at the surface of a beam splitter is the physical process that allows linear optical quantum gates to be built. When distinct parametricExpand
Multi-Photon Quantum Interferences with Independent Thermal Light Sources
We report multi-photon interferences up to fifth order between photons emitted by independent thermal sources and compare the corresponding multi-photon signals to those generated by single photonExpand
Beating the classical resolution limit via multi-photon interferences of independent light sources
We discuss multi-photon interferences up to fifth order between indistinguishable photons emitted by independent light sources. For certain detector positions we observe an interference pattern whichExpand
Quantum interference measurement for realizing a polarization-based quantum relay at 1550 nm
We observed quantum interference using two polarization-entangled photon pairs at 1550 nm, created in two periodically poled lithium niobate waveguides. Using four-fold coincidences, a visibility ofExpand
Spectral characterization of weak coherent state sources based on two-photon interference
We demonstrate a method for characterizing the coherence function of coherent states based on two-photon interference. Two states from frequency mismatched faint laser sources are fed into aExpand
Two-photon interference of the emission from electrically tunable remote quantum dots
Truly remote, independent InGaAs quantum dots are tuned to the same energy using large applied electric fields of up to −500 kV cm−1. This allows for two-photon interference of their emission underExpand
Heralded generation of single photons in pure quantum states
Sources of single photons in pure quantum states are essential to many quantum optics applications. We explore a technique, known as group-velocity matching, that enables the heralded generation ofExpand


The Principles of Quantum Mechanics
IT is now twenty years since the theory of quantum mechanics was founded, and not much less since the first edition of Dirac's book was published. Ever since, it has been a classic of scientificExpand
Quantum Computation and Quantum Information Theory
A dual power and manual hydraulic brake system for a motor vehicle including a fluid pressure operated mechanism for actuating wheel brake shoes or the like, a master cylinder containing a power orExpand
Art of electronics
Our goal is always to offer you an assortment of cost-free ebooks too as aid resolve your troubles. We have got a considerable collection of totally free of expense Book for people from every singleExpand
Aaron Beck’s cognitive therapy model has been used repeatedly to treat depression and anxiety. The case presented here is a 34-year-old female law student with an adjustment disorder with mixedExpand
  • Mod. Phys. 58, 209
  • 1986
  • 2006
  • Rev. Lett. 96, 110501
  • 2006
Phys. Rev. Lett
  • Phys. Rev. Lett
  • 2006
Pan, Opt. Lett
  • Pan, Opt. Lett
  • 2005