Physics – Quantum Physics
Scientific paper
2003-02-20
J. Opt. B, vol. 6, issue 1, pp. 46-53, 2003
Physics
Quantum Physics
9 pages, 6 figures
Scientific paper
10.1088/1464-4266/6/1/008
We argue that (first-order) coherence is a relative, and not an absolute, property. It is shown how feedforward or feedback can be employed to make two (or more) lasers relatively coherent. We also show that after the relative coherence is established, the two lasers will stay relatively coherent for some time even if the feedforward or feedback loop has been turned off, enabling, e.g., demonstration of unconditional quantum teleportation using lasers.
Bjork Gunnar
Heydari Hoshang
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