Creating and detecting micro-macro photon-number entanglement by amplifying and deamplifying a single-photon entangled state.
نویسندگان
چکیده
We propose a scheme for the observation of micro-macro entanglement in photon number based on amplifying and deamplifying a single-photon entangled state in combination with homodyne quantum state tomography. The created micro-macro entangled state, which exists between the amplification and deamplification steps, is a superposition of two components with mean photon numbers that differ by approximately a factor of three. We show that for reasonable values of photon loss it should be possible to detect micro-macro photon-number entanglement where the macrosystem has a mean number of one hundred photons or more.
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ورودعنوان ژورنال:
- Physical review letters
دوره 110 17 شماره
صفحات -
تاریخ انتشار 2013