Experimental state control by fast non-Abelian holonomic gates with a superconducting qutrit

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

12 Sitaatiot (Scopus)

Abstrakti

Quantum state manipulation with gates based on geometric phases acquired during cyclic operations promises inherent fault-tolerance and resilience to local fluctuations in the control parameters. Here we create a general non-Abelian and non-adiabatic holonomic gate acting in the (|0},|2}) subspace of a three-level (qutrit) transmon device fabricated in a fully coplanar design. Experimentally, this is realized by simultaneously coupling the first two transitions by microwave pulses with amplitudes and phases defined such that the condition of parallel transport is fulfilled. We demonstrate the creation of arbitrary superpositions in this subspace by changing the amplitudes of the pulses and the relative phase between them. We use two-photon pulses acting in the holonomic subspace to reveal the coherence of the state created by the geometric gate pulses and to prepare different superposition states. We also test the action of holonomic NOT and Hadamard gates on superpositions in the (|0}, |2}) subspace.

AlkuperäiskieliEnglanti
Artikkeli055101
Sivut1-9
JulkaisuPhysica Scripta
Vuosikerta93
Numero5
DOI - pysyväislinkit
TilaJulkaistu - 26 maaliskuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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  • Projektit

    Kvanttiteknologian huippuyksikkö

    Paraoanu, G., Lan, D., Dogra, S., McCord, J. & Petrovnin, K.

    01/01/201831/12/2020

    Projekti: Academy of Finland: Other research funding

    Laitteet

    OtaNano

    Anna Rissanen (Manager)

    Aalto-yliopisto

    Laitteistot/tilat: Facility

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