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Complementarity and...
Complementarity and quantum erasure with entangled-photon states
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Tsegaye, T. (author)
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- Björk, Gunnar (author)
- KTH,Mikroelektronik och informationsteknik, IMIT
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Atature, M. (author)
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Sergienko, A. V. (author)
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Saleh, B. E. A. (author)
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Teich, M. C. (author)
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(creator_code:org_t)
- 2000
- 2000
- English.
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In: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 62:3, s. art. no.-32106
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
Close
- A quantum-erasure experiment was performed on superposition states of two photons in either of two spatiotemporal modes. Symmetrical tapping of energy from the two-mode state creates a four-mode entangled state. A direct measurement of one photon in two of the modes reveals the path of the second one, thereby eliminating the possibility of observing interference between the two remaining modes. It is shown that a unitary rotation of one of the two-mode states erases the path information; as a consequence, the visibility of the other two-mode state can be resurrected.
Keyword
- parametric down-conversion
- which-way information
- 2-photon interference
- fringe visibility
- 2 photons
- eraser
- uncertainty
- coherence
- interferometer
- phase
Publication and Content Type
- ref (subject category)
- art (subject category)
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