Conditional preparation of X
(2) macroscopic entangled states |
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Authors: | S A Podoshvedov |
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Institution: | (1) School of Computational Sciences, Korea Institute for Advanced Study, 130-722 Seoul, Republic of Korea |
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Abstract: | Two experimental arrangements consisting of coupled spontaneous parametric down-converters with type-I phase matching pumped
simultaneously by a powerful optical field in a coherent state through a balanced beam splitter and linear optical elements
are proposed for conditional preparation of macroscopic entangled states in output pumping modes of the studied system. Successful
generation of the macroscopic entangled state in the pumping modes is unambiguously heralded by coincident detection of two
photons in the generated signal and idler modes of the system. We calculate the amount of entanglement and probabilities of
successfully observing the X
(2) macroscopic entangled states in the total wavefunction. We show that the proposed schemes can be used to obtain a new type
of macroscopic entangled states.
The text was submitted by author in English. |
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Keywords: | |
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