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| Hauptseite > Publikationsdatenbank > Simple Impedance Response Formulas for the Dispersive Interaction Rates in the Effective Hamiltonians of Low Anharmonicity Superconducting Qubits > print |
| Hauptseite > Publikationsdatenbank > Simple Impedance Response Formulas for the Dispersive Interaction Rates in the Effective Hamiltonians of Low Anharmonicity Superconducting Qubits > print |
| 001 | 867507 | ||
| 005 | 20210131031041.0 | ||
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| 100 | 1 | _ | |a Solgun, Firat |0 0000-0003-0887-5146 |b 0 |
| 245 | _ | _ | |a Simple Impedance Response Formulas for the Dispersive Interaction Rates in the Effective Hamiltonians of Low Anharmonicity Superconducting Qubits |
| 260 | _ | _ | |a New York, NY |c 2019 |b IEEE |
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| 520 | _ | _ | |a For superconducting quantum processors consisting of low anharmonicity qubits such as transmons, we give a complete microwave description of the system in the qubit subspace. We assume that the qubits are dispersively coupled to a distributed microwave structure such that the detunings of the qubits from the internal modes of the microwave structure are stronger than their couplings. We define “qubit ports” across the terminals of the Josephson junctions and “drive ports” where transmission lines carrying drive signals reach the chip and we obtain the multiport impedance response of the linear passive part of the system between the ports. We then relate interaction parameters in between qubits and between the qubits and the environment to the entries of this multiport impedance function; in particular, we show that the exchange coupling rate J between qubits is related in a simple way to the off-diagonal entry connecting the qubit ports. Similarly, we relate couplings of the qubits to voltage drives and lossy environment to the entries connecting the qubits and the drive ports. Our treatment takes into account all the modes (possibly infinite) that might be present in the distributed electromagnetic structure and provides an efficient method for the modeling and analysis of the circuits. |
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| 700 | 1 | _ | |a DiVincenzo, David P. |0 P:(DE-Juel1)143759 |b 1 |e Corresponding author |
| 700 | 1 | _ | |a Gambetta, Jay M. |0 0000-0002-4620-0978 |b 2 |
| 773 | _ | _ | |a 10.1109/TMTT.2019.2893639 |g Vol. 67, no. 3, p. 928 - 948 |0 PERI:(DE-600)2028238-2 |n 3 |p 928 - 948 |t IEEE transactions on microwave theory and techniques |v 67 |y 2019 |x 1557-9670 |
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