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Arbitrarily accurate passband composite pulses for dynamical suppression of amplitude noise

Author(s)
Kyoseva, Elica; Vitanov, Nikolay V.
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Abstract
We introduce high-fidelity passband (PB) composite pulse sequences constructed by concatenation of recently derived arbitrarily large and arbitrarily accurate broadband B and narrowband N composite sequences. Our PB sequences allow us to produce flexible and tunable nearly rectangular two-state inversion profiles as a function of the individual pulse area because the width and the rectangularity of these profiles can be adjusted at will. Moreover, these PB sequences suppress excitation around pulse area 0 and 2π, and suppress deviations from complete population inversion around pulse area π to arbitrarily high orders. These features make them a valuable tool for high-fidelity qubit operations in the presence of relatively strong amplitude noise. We construct two types of PB pulses: N(B), in which a broadband pulse is nested into a narrowband pulse, and B(N), in which a narrowband pulse is nested into a broadband pulse; the latter sequences deliver narrower profiles. We derive exact analytic formulas for the composite phases of the PB pulses and exact analytic formulas for the inversion profiles. These formulas allow an easy estimation of the experimental resources needed for any desired qubit inversion profile.
Date issued
2013-12
URI
http://hdl.handle.net/1721.1/85085
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Journal
Physical Review A
Publisher
American Physical Society
Citation
Kyoseva, Elica, and Nikolay V. Vitanov. “Arbitrarily Accurate Passband Composite Pulses for Dynamical Suppression of Amplitude Noise.” Phys. Rev. A 88, no. 6 (December 2013). © 2013 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622

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