Idioma:

Circuit quantum electrodynamics with a spin qubit

PETERSSON, K. D ; MCFAUL, L. W ; SCHROER, M. D ; JUNG, M ; TAYLOR, J. M ; HOUCK, A. A ; PETTA, J. R

Nature (London), 2012-10, Vol.490 (7420), p.380-383 [Periódico revisado por pares]

London: Nature Publishing Group

Texto completo disponível

Citações Citado por

Enviar para

Título:
Circuit quantum electrodynamics with a spin qubit
Autor: PETERSSON, K. D ; MCFAUL, L. W ; SCHROER, M. D ; JUNG, M ; TAYLOR, J. M ; HOUCK, A. A ; PETTA, J. R
Assuntos: Architecture ; Atoms & subatomic particles ; Classical and quantum physics: mechanics and fields ; Electron spin ; Exact sciences and technology ; Holes ; Indium arsenides ; Joining ; Nanostructure ; Nanowires ; Physics ; Properties ; Quantum computation ; Quantum dots ; Quantum electrodynamics ; Quantum information ; Qubits (quantum computing) ; Silicon wafers ; Spin coupling ; Superconductivity ; Superconductors
É parte de: Nature (London), 2012-10, Vol.490 (7420), p.380-383
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ObjectType-Article-2
ObjectType-Feature-1
Descrição: Electron spins trapped in quantum dots have been proposed as basic building blocks of a future quantum processor. Although fast, 180-picosecond, two-quantum-bit (two-qubit) operations can be realized using nearest-neighbour exchange coupling, a scalable, spin-based quantum computing architecture will almost certainly require long-range qubit interactions. Circuit quantum electrodynamics (cQED) allows spatially separated superconducting qubits to interact via a superconducting microwave cavity that acts as a 'quantum bus', making possible two-qubit entanglement and the implementation of simple quantum algorithms. Here we combine the cQED architecture with spin qubits by coupling an indium arsenide nanowire double quantum dot to a superconducting cavity. The architecture allows us to achieve a charge-cavity coupling rate of about 30 megahertz, consistent with coupling rates obtained in gallium arsenide quantum dots. Furthermore, the strong spin-orbit interaction of indium arsenide allows us to drive spin rotations electrically with a local gate electrode, and the charge-cavity interaction provides a measurement of the resulting spin dynamics. Our results demonstrate how the cQED architecture can be used as a sensitive probe of single-spin physics and that a spin-cavity coupling rate of about one megahertz is feasible, presenting the possibility of long-range spin coupling via superconducting microwave cavities.
Editor: London: Nature Publishing Group
Idioma: Inglês

Links

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Circuit quantum electrodynamics with a spin qubit

PETERSSON, K. D ; MCFAUL, L. W ; SCHROER, M. D ; JUNG, M ; TAYLOR, J. M ; HOUCK, A. A ; PETTA, J. R

London: Nature Publishing Group

Buscando em bases de dados remotas. Favor aguardar.