期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.033602
关键词
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资金
- Spanish MICINN [FIS2011-29287, FIS2009-10061]
- CAM research consortium QUITEMAD [S2009-ESP-1594]
- Ayuntamiento de Madrid
- CSIC JAE-PREDOC
We propose a realistic circuit QED experiment to test the extraction of past-future vacuum entanglement to a pair of superconducting qubits. The qubit P interacts with the quantum field along an open transmission line for an interval T-on and then, after a time-lapse T-off, the qubit F starts interacting for a time T-on in a symmetric fashion. After that, past-future quantum correlations will have transferred to the qubits, even if the qubits do not coexist at the same time. We show that this experiment can be realized with current technology and discuss its utility as a possible implementation of a quantum memory.
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