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Books > Science & Mathematics > Physics > Quantum physics (quantum mechanics)
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Fast Gates and Mixed-Species Entanglement with Trapped Ions (Hardcover, 1st ed. 2020)
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Fast Gates and Mixed-Species Entanglement with Trapped Ions (Hardcover, 1st ed. 2020)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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Quantum logic gates are the crucial information-processing
operation of quantumcomputers. Two crucial performance metrics for
logic gates are their precision andspeed. Quantum processors based
on trapped ions have always been the touchstonefor gate precision,
but have suffered from slow speed relative to other quantum
logicplatforms such as solid state systems. This thesis shows that
it is possible to acceleratethe logic "clock speed" from kHz to MHz
speeds, whilst maintaining a precision of99.8%. This is almost as
high as the world record for conventional trapped-ion gates,but
more than 20 times faster. It also demonstrates entanglement
generation in atime (480ns) shorter than the natural timescale of
the ions' motion in the trap, whichstarts to probe an interesting
new regime of ion trap physics. In separate experiments, some of
the first "mixed-species" quantum logic gates areperformed, both
between two different elements, and between different isotopes.The
mixed-isotope gate is used to make the first test of the
quantum-mechanical Bellinequality between two different species of
isolated atoms.
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