Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.033602
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Funding
- Spanish MICINN [FIS2011-29287, FIS2009-10061]
- CAM research consortium QUITEMAD [S2009-ESP-1594]
- Ayuntamiento de Madrid
- CSIC JAE-PREDOC
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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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