Journal Article

FZJ-2020-03280

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png What is measured when a qubit measurement is performed on a multiqubit chip

Pommerening, J. C. (Corresponding author)FZJ* ; DiVincenzo, D. P.FZJ*

2020
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/25791  doi:10.1103/PhysRevA.102.032623

Abstract: We study how single-qubit dispersive readout works alongside two-qubit coupling. To make calculations analytically tractable, we use a simplified model which retains core characteristics of but is discretized compared to dispersive homodyne detection. We show how the measurement speed and power determine what information about the qubit(s) is accessed. Specifically we find the basis the measurement is closest to projecting onto. Compared to the basis in which gates are applied, this measurement basis is modified by the presence of photons in the readout resonator.

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Contributing Institute(s):

1. Theoretische Nanoelektronik (PGI-2)

Research Program(s):

1. 144 - Controlling Collective States (POF3-144) (POF3-144)

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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