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Title

Entanglement of superconducting qubits via acceleration radiation

AuthorsGarcía-Álvarez, Laura; Fellicetti, Simone; Rico, Enrique; Solano, Enrique; Sabín, Carlos
Issue Date6-Apr-2017
PublisherNature Publishing Group
CitationScientific Reports 7: 657 (2017)
AbstractWe show that simulated relativistic motion can generate entanglement between artificial atoms and protect them from spontaneous emission. We consider a pair of superconducting qubits coupled to a resonator mode, where the modulation of the coupling strength can mimic the harmonic motion of the qubits at relativistic speeds, generating acceleration radiation. We find the optimal feasible conditions for generating a stationary entangled state between the qubits when they are initially prepared in their ground state. Furthermore, we analyse the effects of motion on the probability of spontaneous emission in the standard scenarios of single-atom and two-atom superradiance, where one or two excitations are initially present. Finally, we show that relativistic motion induces sub-radiance and can generate a Zeno-like effect, preserving the excitations from radiative decay.
Description7 pags., 5 figs. -- Open Access funded by Creative Commons Atribution Licence 4.0
Publisher version (URL)http://doi.org/10.1038/s41598-017-00770-z
URIhttp://hdl.handle.net/10261/158992
Identifiersdoi: 10.1038/s41598-017-00770-z
issn: 2045-2322
Appears in Collections:(CFMAC-IFF) Artículos
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