Correlated spectrum of distant semiconductor qubits coupled by microwave photons

Baochuan Wang; Ting Lin; Haiou Li; Sisi Gu; Mingbo Chen; Guangcan Guo; Hongwen Jiang; Xuedong Hu; Gang Cao; Guoping Guo

doi:10.1016/j.scib.2020.10.005

Correlated spectrum of distant semiconductor qubits coupled by microwave photons

Baochuan Wang
, Ting Lin
, Haiou Li
, Sisi Gu
, Mingbo Chen
, Guangcan Guo
, Hongwen Jiang
, Xuedong Hu
, Gang Cao
, Guoping Guo

Physics

University of Science and Technology of China
University of California at Los Angeles
Origin Quantum

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. Highly distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating photons. These patterns are in excellent agreement with a simulation using the Tavis-Cummings model, and allow us to readily identify different parameter regimes for both qubits in the detuning space. This method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity quantum electrodynamics (QED) coupled qubits.

Original language	English
Pages (from-to)	332-338
Number of pages	7
Journal	Science Bulletin
Volume	66
Issue number	4
DOIs	https://doi.org/10.1016/j.scib.2020.10.005
State	Published - Feb 26 2021

Keywords

Cavity quantum electrodynamics
Quantum computation
Semiconductor quantum dot
Semiconductor qubit
Strong coupling

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10.1016/j.scib.2020.10.005

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title = "Correlated spectrum of distant semiconductor qubits coupled by microwave photons",

abstract = "We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. Highly distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating photons. These patterns are in excellent agreement with a simulation using the Tavis-Cummings model, and allow us to readily identify different parameter regimes for both qubits in the detuning space. This method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity quantum electrodynamics (QED) coupled qubits.",

keywords = "Cavity quantum electrodynamics, Quantum computation, Semiconductor quantum dot, Semiconductor qubit, Strong coupling",

author = "Baochuan Wang and Ting Lin and Haiou Li and Sisi Gu and Mingbo Chen and Guangcan Guo and Hongwen Jiang and Xuedong Hu and Gang Cao and Guoping Guo",

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T1 - Correlated spectrum of distant semiconductor qubits coupled by microwave photons

AU - Wang, Baochuan

AU - Lin, Ting

AU - Li, Haiou

AU - Gu, Sisi

AU - Chen, Mingbo

AU - Guo, Guangcan

AU - Jiang, Hongwen

AU - Hu, Xuedong

AU - Cao, Gang

AU - Guo, Guoping

PY - 2021/2/26

Y1 - 2021/2/26

N2 - We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. Highly distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating photons. These patterns are in excellent agreement with a simulation using the Tavis-Cummings model, and allow us to readily identify different parameter regimes for both qubits in the detuning space. This method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity quantum electrodynamics (QED) coupled qubits.

AB - We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. Highly distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating photons. These patterns are in excellent agreement with a simulation using the Tavis-Cummings model, and allow us to readily identify different parameter regimes for both qubits in the detuning space. This method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity quantum electrodynamics (QED) coupled qubits.

KW - Cavity quantum electrodynamics

KW - Quantum computation

KW - Semiconductor quantum dot

KW - Semiconductor qubit

KW - Strong coupling

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VL - 66

SP - 332

EP - 338

JO - Science Bulletin

JF - Science Bulletin

IS - 4

ER -

Correlated spectrum of distant semiconductor qubits coupled by microwave photons

Abstract

Keywords

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