Carlos Sabin, Borja Peropadre, Marco del Rey, Eduardo Martin-Martinez
We propose a realistic circuit QED experiment to test the extraction of
past-future vacuum quantum correlations 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 of the vacuum 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.
View original:
http://arxiv.org/abs/1202.1230
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