Corrections to the Berry phase in a solid-state qubit due to low-frequency noise

We present a quantum open-system approach to analyze the nonunitary dynamics of a superconducting qubit when it evolves under the influence of external noise. We consider the presence of longitudinal and transverse environmental fluctuations affecting the system's dynamics and model these fluct...

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Autores principales: Lombardo, Fernando César, Villar, Paula Inés
Publicado: 2014
Materias:
Correlation function
Environmental fluctuations
High frequency HF
High-frequency noise
Low-Frequency Noise
Noise correlation
Open quantum systems
Superconducting qubits
Quantum computers
Quantum electronics
Quantum optics
Solid state physics
Superconductivity
Fruits
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v89_n1_p_Lombardo
http://hdl.handle.net/20.500.12110/paper_10502947_v89_n1_p_Lombardo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10502947_v89_n1_p_Lombardo
record_format dspace
spelling paper:paper_10502947_v89_n1_p_Lombardo2023-06-08T16:02:47Z Corrections to the Berry phase in a solid-state qubit due to low-frequency noise Lombardo, Fernando César Villar, Paula Inés Correlation function Environmental fluctuations High frequency HF High-frequency noise Low-Frequency Noise Noise correlation Open quantum systems Superconducting qubits Quantum computers Quantum electronics Quantum optics Solid state physics Superconductivity Fruits We present a quantum open-system approach to analyze the nonunitary dynamics of a superconducting qubit when it evolves under the influence of external noise. We consider the presence of longitudinal and transverse environmental fluctuations affecting the system's dynamics and model these fluctuations by defining their correlation function in time. By using a Gaussian-like noise correlation, we can study low- and high-frequency noise contribution to decoherence and implement our results in the computation of geometric phases in open quantum systems. We numerically study when the accumulated phase of a solid-state qubit can still be found close to the unitary (Berry) one. Our results can be used to explain experimental measurements of the Berry phase under high-frequency fluctuations and design experimental future setups when manipulating superconducting qubits. © 2014 American Physical Society. Fil:Lombardo, F.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Villar, P.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v89_n1_p_Lombardo http://hdl.handle.net/20.500.12110/paper_10502947_v89_n1_p_Lombardo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Correlation function
Environmental fluctuations
High frequency HF
High-frequency noise
Low-Frequency Noise
Noise correlation
Open quantum systems
Superconducting qubits
Quantum computers
Quantum electronics
Quantum optics
Solid state physics
Superconductivity
Fruits
spellingShingle Correlation function
Environmental fluctuations
High frequency HF
High-frequency noise
Low-Frequency Noise
Noise correlation
Open quantum systems
Superconducting qubits
Quantum computers
Quantum electronics
Quantum optics
Solid state physics
Superconductivity
Fruits
Lombardo, Fernando César
Villar, Paula Inés
Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
topic_facet Correlation function
Environmental fluctuations
High frequency HF
High-frequency noise
Low-Frequency Noise
Noise correlation
Open quantum systems
Superconducting qubits
Quantum computers
Quantum electronics
Quantum optics
Solid state physics
Superconductivity
Fruits
description We present a quantum open-system approach to analyze the nonunitary dynamics of a superconducting qubit when it evolves under the influence of external noise. We consider the presence of longitudinal and transverse environmental fluctuations affecting the system's dynamics and model these fluctuations by defining their correlation function in time. By using a Gaussian-like noise correlation, we can study low- and high-frequency noise contribution to decoherence and implement our results in the computation of geometric phases in open quantum systems. We numerically study when the accumulated phase of a solid-state qubit can still be found close to the unitary (Berry) one. Our results can be used to explain experimental measurements of the Berry phase under high-frequency fluctuations and design experimental future setups when manipulating superconducting qubits. © 2014 American Physical Society.
author Lombardo, Fernando César
Villar, Paula Inés
author_facet Lombardo, Fernando César
Villar, Paula Inés
author_sort Lombardo, Fernando César
title Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
title_short Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
title_full Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
title_fullStr Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
title_full_unstemmed Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
title_sort corrections to the berry phase in a solid-state qubit due to low-frequency noise
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v89_n1_p_Lombardo
http://hdl.handle.net/20.500.12110/paper_10502947_v89_n1_p_Lombardo
work_keys_str_mv AT lombardofernandocesar correctionstotheberryphaseinasolidstatequbitduetolowfrequencynoise
AT villarpaulaines correctionstotheberryphaseinasolidstatequbitduetolowfrequencynoise
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