Conference Presentation (Plenary/Keynote) FZJ-2024-07063

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Multimode entangling interactions between transmons coupled through a metamaterial ring-resonator: theory

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2023

APS March Meeting 2023, Las VegasLas Vegas, USA, 5 Mar 2023 - 10 Mar 20232023-03-052023-03-10

Abstract: The use of Left-Handed-Transmisson lines allows a very high mode denisty at frequencies above the IR cutoff due to its disperson relation. We theoretically support an experiment on coupling two qubits to the device and calculate the g-coupling to the modes, which exhibit different frequency dependency when compared to the right-handed case. A careful analysis of these couplings leads to the effective coupling between the qubits, which can be very large, since the modes are very dense and therefore transmit high interaction. In general this causes the ZZ-interaction between the qubits to be large, but we can still acurately predict static qubit-qubit interaction both for only a few kHz aswell as for tens of MHz. In this talk we will present the modeling of this Left-Handed system and compare it to experimental measurements.


Contributing Institute(s):
  1. Theoretische Nanoelektronik (PGI-2)
Research Program(s):
  1. 5221 - Advanced Solid-State Qubits and Qubit Systems (POF4-522) (POF4-522)

Appears in the scientific report 2024
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Dokumenttypen > Präsentationen > Konferenzvorträge
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 Datensatz erzeugt am 2024-12-13, letzte Änderung am 2025-02-03



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