Nonlocal modulation of entangled photons

  title={Nonlocal modulation of entangled photons},
  author={Sarah E. Harris},
  journal={Physical Review A},
  • S. Harris
  • Published 6 August 2008
  • Physics
  • Physical Review A
We consider ramifications of the use of high-speed light modulators to questions of correlation and measurement of time-energy entangled photons. Using phase modulators, we find that temporal modulation of one photon of an entangled pair, as measured by correlation in the frequency domain, may be negated or enhanced by modulation of the second photon. Using amplitude modulators, we describe a Fourier technique for measurement of biphoton wave functions with slow detectors. 

Figures from this paper

Modulation and Measurement of Time-Energy Entangled Photons
We describe a proof-of-principle experiment demonstrating a Fourier technique for measuring the shape of biphoton wavepackets that vary rapidly as compared to the speed of available photon detectors.
Electro-optic modulation for high-speed characterization of entangled photon pairs.
By applying fast modulation signals with a sharply peaked cross-correlation to each photon from an entangled pair, it is possible to measure temporal correlations with significantly higher precision than that attainable using standard single-photon detection.
Nonlocal Modulation of Biphotons
We experimentally describe a new quantum effect where temporal modulation of one photon of an entangled pair, as measured by frequency-domain correlation, may be negated or enhanced by modulation of
Spectral correlations of phase modulated entangled photons
We investigate spectral properties of entangled photons in EPR-pair, which interacts with phase modulators. In three mode approximation we got the exact analytical expressions for their common state
Characterization of coherent quantum frequency combs using electro-optic phase modulation
We demonstrate a two-photon interference experiment for phase coherent biphoton frequency combs (BFCs), created through spectral amplitude filtering of biphotons with a continuous broadband spectrum.
Biphoton Pulse Shaping
Recent research has demonstrated how classical optical signal-processing techniques can be extended to nonclassical entangled-photon states, permitting unprecedented control of the time-frequency
Shaping Paired Photons with Four-Wave Mixing and Slow Light
We show that the Glauber correlation function of paired photons generated in a double-lambda atomic ensemble can be controlled by modulating two injected classical laser fields, using slow light
Purification of Single and Entangled Photons by Wavepacket Shaping
Single photons and entangled photons lie at the heart of photonic quantum technologies, whose optimal performances are normally reached when the purity of the single or entangled photons is high.
Quantum-State Purity of Heralded Single Photons Produced from Frequency-Anti-Correlated Biphotons
We analyze the quantum-state purity of heralded single photons produced from frequency-anticorrelated biphotons. We find that the quantum-state purity in the time-frequency domain depends strongly on
Temporal pure single photons generated from time-frequency entangled biphotons
Narrow-band time-frequency entangled biphotons are generated from spontaneous four-wave mixing in cold atom clouds. The coherence time of the entangled biphotons can be extended to sub-microseconds


  • Pe’er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 93, 023005
  • 2004
  • Rev. Lett. 88, 183601
  • 2002
  • Rev. Lett. 94, 183601
  • 2005
  • Wasylczyk, A.B. U’Ren, C. Silberhorn, and I.A. Walmsley, Phys. Rev. Lett 100, 133601, (2008); A.B. U’Ren, C. Silberhorn, K. Banaszek, I.A. Walmsley, R. Erdmann , W.P. Grice, M.G. Raymer, Laser Physics Letters 15, 146, (2005); W.P. Grice, A. B. U’Ren, and I. A. Walmsley, Phys. Rev. A 64, 063815
  • 2001
  • Rev. Lett 90, 133603,
  • 2003
  • Rev. A, 73, 031801(R)
  • 2006
  • Rev. A, 45, 3126
  • 1992
  • Rev. Lett. 97, 113602
  • 2006
  • Rev. Lett. 69, 3041,
  • 1992
  • Viciani, A.Zavatta, F.T. Arecchi, Phys. Rev. Lett. 90, 043602,
  • 2003