http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18703
Coupling superconducting qubits via a cavity bus (Articolo in rivista)
- Type
- Label
- Coupling superconducting qubits via a cavity bus (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1038/nature06184 (literal)
- Alternative label
J.Majer, J.M.Chow, J.M.Gambetta, J. Koch, B.R. Johnson, J.A.Schreier, L. Frunzio, D.I.Schuster, A.A.Houck, A. Wallraff, A. Blais, M.H.Devoret, S.M.Girvin, and R.J.Schoelkopf (2007)
Coupling superconducting qubits via a cavity bus
in Nature physics (Print); NATURE PUBLISHING GROUP,, LONDON (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- J.Majer, J.M.Chow, J.M.Gambetta, J. Koch, B.R. Johnson, J.A.Schreier, L. Frunzio, D.I.Schuster, A.A.Houck, A. Wallraff, A. Blais, M.H.Devoret, S.M.Girvin, and R.J.Schoelkopf (literal)
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520, USA. (literal)
- Titolo
- Coupling superconducting qubits via a cavity bus (literal)
- Abstract
- Superconducting circuits are promising candidates for constructing
quantum bits (qubits) in a quantum computer; single-qubit
operations are now routine, and several examples of two-qubit
interactions and gates have been demonstrated. These experiments
show that two nearby qubits can be readily coupled with
local interactions. Performing gate operations between an arbitrary
pair of distant qubits is highly desirable for any quantum
computer architecture, but has not yet been demonstrated. An
efficient way to achieve this goal is to couple the qubits to a
'quantum bus', which distributes quantum information among
the qubits. Here we show the implementation of such a quantum
bus, using microwave photons confined in a transmission line
cavity, to couple two superconducting qubits on opposite sides
of a chip. The interaction is mediated by the exchange of virtual
rather than real photons, avoiding cavity-induced loss. Using fast
control of the qubits to switch the coupling effectively on and off,
we demonstrate coherent transfer of quantum states between the
qubits. The cavity is also used to perform multiplexed control and
measurement of the qubit states. This approach can be expanded
to more than two qubits, and is an attractive architecture for
quantum information processing on a chip. (literal)
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