New Experimental Realization of a Quantum Eraser Based on Downconversion

  • C. H. Monken
  • D. Branning
  • L. Mandel
Conference paper


The concept of a quantum eraser, which was introduced by Scully and Drühl1, rests on the relationship between coherence and the indistinguishability of the different photon path(s) in an interference experiment.2–4 Interference effects disappear whenever it is possible, at least in principle, to identify the path of the photons. But if the path information could be erased in some way, the interference should reappear. Several possible forms of quantum eraser have already been described.5,6 We report on a variant of these based on parametric downconversion.


Beam Splitter Polarization Rotation Optical Path Difference Path Information Photon Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    M. O. Scully and K. Drühl, Phys. Rev. A 25, 2208 (1982).CrossRefGoogle Scholar
  2. 2.
    M. O. Scully and H. Walther, Phys. Rev. A 39, 5229 (1989).MathSciNetCrossRefGoogle Scholar
  3. 3.
    M. O. Scully, B.-G. Englert and H. Walther, Nature 35, 111 (1991).CrossRefGoogle Scholar
  4. 4.
    L. Mandel, Opt. Lett. 16, 1882 (1991).CrossRefGoogle Scholar
  5. 5.
    P. Kwiat, A. Steinberg and R. Chico, in Foundations of Ouantum Mechanics eds. T. D. Black, M. M. Nieto, H. S. Piloff, M. O. Scully and R. M. Sinclair ( World Scientific, Singapore, 1992 ) pg. 193.Google Scholar
  6. 6.
    R. Y. Chiao, P.-G. Kwiat and A. M. Steinberg, Quant. and Semiclass. Opt. 7, 259 (1995).Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • C. H. Monken
    • 1
  • D. Branning
    • 1
  • L. Mandel
    • 1
  1. 1.Department of Physics and AstronomyUniversity of RochesterRochesterUSA

Personalised recommendations