© 2006 Optical Society of America

1. A. Elizur and L. Vaidman, "Quantum mechanical interaction-free measurements," Found. Phys. 23, 987-997 (1993); L. Vaidman, "On the realization of interaction-free measurements," Quantum Opt. 6, 119 (1994). [CrossRef]
2. P. Kwiat, H. Weinfurter, A. Zeilinger, "Quantum Seeing in the Dark," Sci. Am. 275, 72-77 (1996); P. Kwiat, H. Weinfurter, T. Herzog, A. Zeilinger, M. A. Kasevich, "Interaction-free measurement," Phys. Rev. Lett. 74, 4763-4767 (1995). [CrossRef]
3. A. G. White, J. R. Mitchell, O. Nairz, and P. G. Kwiat, "Interaction-free imaging," Phys. Rev. A 58, 605-613 (1998). [CrossRef]
4. P. Kwiat, "Experimental and theoretical progress in interaction-free measurements," Physica Scripta T76, 115- 121 (1998). [CrossRef]
5. P. Facchi, Z. Hradil, G. Krenn, S. Pascazio, and J . Rěhaćěk, "Quantum Zeno tomography," Phys. Rev. A 66, 12110 (2002). [CrossRef]
6. S. Inoue and G. Björk, "Experimental demonstration of exposure-free imaging and contrast amplification," J. Opt. B: Quantum Semiclass. Opt. 2, 338-345 (2000). [CrossRef]
7. J.-S. Jang, "Optical interaction-free measurement of semitransparent objects," Phys. Rev. A 59, 2322-2329 (1999). [CrossRef]
8. Rigorously speaking, the transformation βn+1 ->√ηβn+1 does not correspond to the linear mapping |βn+1i - > |√ηβ n+1i but to its density matrix counterpart: |βn+1ihβn+1| ->|√ηβn+1ih√ηβn+1|. The latter accounts for decoherence effect, whereas the former does not. Since in our analysis we are always dealing with factorized states, the two transformations coincide for us.
9. <other> This effect can be explained intuitively as follows. If the object is transparent, at the first round trip a small amount of radiation leaks into the R modes, at the second round trip a higher amount leaks there and so on constantly increasing through constructive interference until all the radiation moves into such modes after N =π/φ round trips. If, instead, the object is opaque, the little radiation that has leaked into the R modes at the first round trip is absorbed and does not contribute to the constructive interference that would draw more radiation into these modes at the second round trip. As a result very little radiation transfers and most of it remains in the L modes.</other>

Found. Phys.

• A. Elizur and L. Vaidman, "Quantum mechanical interaction-free measurements," Found. Phys. 23, 987-997 (1993); L. Vaidman, "On the realization of interaction-free measurements," Quantum Opt. 6, 119 (1994). [CrossRef]

Phys. Rev. A

• J.-S. Jang, "Optical interaction-free measurement of semitransparent objects," Phys. Rev. A 59, 2322-2329 (1999). [CrossRef]
• A. G. White, J. R. Mitchell, O. Nairz, and P. G. Kwiat, "Interaction-free imaging," Phys. Rev. A 58, 605-613 (1998). [CrossRef]

Physica Scripta

• P. Kwiat, "Experimental and theoretical progress in interaction-free measurements," Physica Scripta T76, 115- 121 (1998). [CrossRef]

Sci. Am.

• P. Kwiat, H. Weinfurter, A. Zeilinger, "Quantum Seeing in the Dark," Sci. Am. 275, 72-77 (1996); P. Kwiat, H. Weinfurter, T. Herzog, A. Zeilinger, M. A. Kasevich, "Interaction-free measurement," Phys. Rev. Lett. 74, 4763-4767 (1995). [CrossRef]

Other

• Rigorously speaking, the transformation βn+1 ->√ηβn+1 does not correspond to the linear mapping |βn+1i - > |√ηβ n+1i but to its density matrix counterpart: |βn+1ihβn+1| ->|√ηβn+1ih√ηβn+1|. The latter accounts for decoherence effect, whereas the former does not. Since in our analysis we are always dealing with factorized states, the two transformations coincide for us.
• <other> This effect can be explained intuitively as follows. If the object is transparent, at the first round trip a small amount of radiation leaks into the R modes, at the second round trip a higher amount leaks there and so on constantly increasing through constructive interference until all the radiation moves into such modes after N =π/φ round trips. If, instead, the object is opaque, the little radiation that has leaked into the R modes at the first round trip is absorbed and does not contribute to the constructive interference that would draw more radiation into these modes at the second round trip. As a result very little radiation transfers and most of it remains in the L modes.</other>
• P. Facchi, Z. Hradil, G. Krenn, S. Pascazio, and J . Rěhaćěk, "Quantum Zeno tomography," Phys. Rev. A 66, 12110 (2002). [CrossRef]
• S. Inoue and G. Björk, "Experimental demonstration of exposure-free imaging and contrast amplification," J. Opt. B: Quantum Semiclass. Opt. 2, 338-345 (2000). [CrossRef]

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