Efficient Scheme for Macroscopic Superpositions and Entanglement of High-Order Squeezed Vacuum States in Cavity QED |
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Authors: | CHEN Chang-Yong |
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Affiliation: | Department of Physics and Information Engineering, Hunan Institute
of Humanities, Science and Technology, Loudi 417000, China |
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Abstract: | We propose an efficient scheme for generating the macroscopic
superpositions and the entanglement between the high-order squeezed vacuum
states by considering the multi-photon interaction of N two-level atoms in
a cavity with high quality factor, assisted by a strong driving field. Through specific choices of the cavity detuning, a number of multi-party
entangled states between the atoms and the high-order squeezed vacuum states
and among the high-order squeezed vacuum states of the cavities can be
prepared, including also the macroscopic “Schrödinger cats”
of the high-order squeezed vacuum states, the entangled states of the
macroscopic “Schrödinger cats”, and so on. Possible extension and application of our scheme are discussed. Our scheme
is reachable within the current techniques in the cavity QED. |
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Keywords: | multiparty entanglement cavity QED multi-photon interaction |
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