English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Robust and Resource-Efficient Microwave Near-Field Entangling 9Be+ Gate

MPS-Authors
/persons/resource/persons231174

Schulte,  M.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons124270

Hammerer,  K.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

1911.03954.pdf
(Preprint), 525KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Zarantonello, G., Hahn, H., Morgner, J., Schulte, M., Bautista-Salvador, A., Werner, R. F., et al. (2019). Robust and Resource-Efficient Microwave Near-Field Entangling 9Be+ Gate. Physical Review Letters, 123: 260503. doi:10.1103/PhysRevLett.123.260503.


Cite as: http://hdl.handle.net/21.11116/0000-0005-7DA1-9
Abstract
Microwave trapped-ion quantum logic gates avoid spontaneous emission as a fundamental source of decoherence. However, microwave two-qubit gates are still slower than laser-induced gates and hence more sensitive to fluctuations and noise of the motional mode frequency. We propose and implement amplitude-shaped gate drives to obtain resilience to such frequency changes without increasing the pulse energy per gate operation. We demonstrate the resilience by noise injection during a two-qubit entangling gate with $^9$Be$^+$ ion qubits. In absence of injected noise, amplitude modulation gives an operation infidelity in the $10^{-3}$ range.