Tunable coupling of superconducting qubits

A Blais, AM van den Brink, AM Zagoskin - Physical review letters, 2003 - APS
… junction (CBJJ) as a tunable coupler for superconducting qubits. By modulating the bias …
and entangled with the qubits coupled to it. One can thus implement two-qubit operations by …

Fast tunable coupler for superconducting qubits

RC Bialczak, M Ansmann, M Hofheinz, M Lenander… - Physical review …, 2011 - APS
qubit coupling architectures. Here, we demonstrate a novel tunable coupling circuit that
allows superconducting qubits to be coupled over long distances. We show that the interqubit …

Tunable coupling architecture for fixed-frequency transmon superconducting qubits

J Stehlik, DM Zajac, DL Underwood, T Phung, J Blair… - Physical review …, 2021 - APS
… In conclusion, we developed a new type of a tunable coupler that is suitable for operations
between fixedfrequency transmons. Using this BBQ architecture, we demonstrated gate …

Tunable coupler to fully decouple and maximally localize superconducting qubits

L Heunisch, C Eichler, MJ Hartmann - Physical Review Applied, 2023 - APS
… In the following, we consider a two-qubit system coupled by a tunable coupler. For our …
which two tunable transmons are coupled via a tunable coupler formed by a C-shunt flux qubit [39…

Quantum coherent tunable coupling of superconducting qubits

AO Niskanen, K Harrabi, F Yoshihara, Y Nakamura… - Science, 2007 - science.org
… To this end, superconducting circuits allow for a high degree of flexibility. We report on the
time-domain tunable coupling of optimally biased superconducting flux qubits. By modulating …

Strong tunable coupling between two distant superconducting spin qubits

M Pita-Vidal, JJ Wesdorp, LJ Splitthoff, A Bargerbos… - Nature Physics, 2024 - nature.com
… to switch off the coupling in situ. … superconducting qubit architecture can combine the
advantages of both semiconductors and superconducting circuits and pave the way to fast two-qubit

Analysis of a tunable coupler for superconducting phase qubits

RA Pinto, AN Korotkov, MR Geller, VS Shumeiko… - Physical Review B …, 2010 - APS
… of the time, and the coupling of a desired type between two or three qubits is switched on only
for … Since the superconducting qubits cannot be physically moved in space, such coupling/…

Suppression of qubit crosstalk in a tunable coupling superconducting circuit

P Mundada, G Zhang, T Hazard, A Houck - Physical Review Applied, 2019 - APS
… two-qubit, two-coupler superconducting circuit, where the frequency of a tunable coupler can
… Lloyd, and JS Tsai, Quantum coherent tunable coupling of superconducting qubits, Science …

Tunable coupling between three qubits as a building block for a superconducting quantum computer

P Groszkowski, AG Fowler, F Motzoi, FK Wilhelm - Physical Review B …, 2011 - APS
… of superconducting qubits and of their possible coupling mechanisms.In this paper, we look
at inductively coupled flux qubits along with dc superconducting … ) used for tunability. The DC-…

Hardware-efficient microwave-activated tunable coupling between superconducting qubits

BK Mitchell, RK Naik, A Morvan, A Hashim… - Physical review …, 2021 - APS
… with fixed frequencies and fixed coupling, induced by driving both transmons off resonantly.
We show tunable coupling over 1 order of magnitude larger than the static coupling, and …