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Entangling two oscillators with arbitrary asymmetric initial states
Yang, Chui-Ping Su, Qi-Ping Zheng, Shi-Biao Nori, Franco Han, Siyuan
Yang, Chui-Ping
Su, Qi-Ping
Zheng, Shi-Biao
Nori, Franco
Han, Siyuan
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Abstract
We present a Hamiltonian which can be used to convert any asymmetric state |φ⟩a|ϕ⟩b of two oscillators a and b into an entangled state via a single-step operation. Furthermore, with this Hamiltonian and only local operations, two oscillators, initially in any asymmetric initial states, can be entangled with a third oscillator. The prepared entangled states can be engineered with an arbitrary degree of entanglement. A discussion of the realization of this Hamiltonian is given. Numerical simulations show that, with current circuit QED technology, it is feasible to generate high-fidelity entangled states of two microwave optical fields, such as entangled coherent states, entangled squeezed states, entangled coherent-squeezed states, and entangled cat states. Our finding opens a avenue for creating not only wavelike or particlelike entanglement but also wavelike and particlelike hybrid entanglement
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Date
2017-05-23
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American Physical Society
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Keywords
Entanglement production, Quantum entanglement
Citation
Yang, Chui-Ping, (2017) Entangling two oscillators with arbitrary asymmetric initial states, Physical Review A 95:5, https://doi.org/10.1103/PhysRevA.95.052341