Experimentally Verified, Fast Analytic, and Numerical Design of Superconducting Resonators in Flip-Chip Architectures

Li, Hangxi,1994Chalmers tekniska högskola,Chalmers University of Technology (författare)

In superconducting quantum processors, the predictability of device parameters is of increasing importance as many laboratories scale up their systems to larger sizes in a 3-D-integrated architecture. In particular, the properties of superconducting resonators must be controlled well to ensure high-fidelity multiplexed readout of qubits. Here, we present a method, based on conformal mapping techniques, to predict a resonator's parameters directly from its 2-D cross-section, without computationally heavy and time-consuming 3-D simulation. We demonstrate the method's validity by comparing the calculated resonator frequency and coupling quality factor with those obtained through 3-D finite-element-method simulation and by measurement of 15 resonators in a flip-chip-integrated architecture. We achieve a discrepancy of less than 2% between designed and measured frequencies for 6-GHz resonators. We also propose a design method that reduces the sensitivity of the resonant frequency to variations in the interchip spacing.

NATURVETENSKAP Fysik Annan fysik hsv//swe
NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
Resonators
Finite element analysis
coplanar waveguide
Superconducting magnets
Frequency measurement
penetration depth
flip chip
Coplanar waveguides
Flip-chip devices
Qubit
superconducting resonator
kinetic inductance
quantum processor
Conformal mapping

Shiri, Daryoush,1975Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)shiri (författare)
Kosen, Sandoko,1991Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sandoko (författare)
Rommel, Marcus,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)rommelm (författare)
Chayanun, Lert,1990Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lert (författare)
Nylander, Andreas,1988Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)nylandea (författare)
Rehammar, Robert,1980Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)e9ravn (författare)
Tancredi, Giovanna,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tancredi (författare)
Caputo, MarcoTeknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT) (författare)
Grigoras, KestutisTeknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT) (författare)
Gronberg, LeifTeknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT) (författare)
Govenius, JoonasTeknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT) (författare)
Bylander, Jonas,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bylander (författare)
Chalmers tekniska högskolaTeknologian Tutkimuskeskus (VTT) (creator_code:org_t)

Av författaren/redakt...: Li, Hangxi, 1994; Shiri, Daryoush, ...; Kosen, Sandoko, ...; Rommel, Marcus, ...; Chayanun, Lert, ...; Nylander, Andrea ...; visa fler...; Rehammar, Robert ...; Tancredi, Giovan ...; Caputo, Marco; Grigoras, Kestut ...; Gronberg, Leif; Govenius, Joonas; Bylander, Jonas, ...; visa färre...

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