Interband transitions and interference effects in superconducting qubits

Antti Paila; Jani Tuorila; Mika Sillanpää; David Gunnarsson; Jayanta Sarkar; Yuriy Makhlin; Erkki Thuneberg; Pertti Hakonen

doi:10.1007/s11128-009-0102-4

Interband transitions and interference effects in superconducting qubits

Antti Paila, Jani Tuorila, Mika Sillanpää, David Gunnarsson, Jayanta Sarkar, Yuriy Makhlin, Erkki Thuneberg, Pertti Hakonen

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

7 Citations (Scopus)

Abstract

We investigate phase-sensitive interference effects in a periodically sin(2π f _rf t)-driven, artificial two-state system connected to a microwave resonator at f _LC 800 MHz. We observe two kinds of multiphoton transitions in the two-state system, accompanied by: (1) Several quanta from the drive at f _rf and (2) one quantum at f _rf and several at f _LC. The former are described using phase-sensitive Landau-Zener transitions, while the latter are discussed in terms of vibronic transitions in diatomic molecules. Interference effects in the vibronic transitions governed by Franck-Condon coefficients are also considered.

Original language	English
Pages (from-to)	245-259
Number of pages	15
Journal	Quantum Information Processing
Volume	8
Issue number	2-3
DOIs	https://doi.org/10.1007/s11128-009-0102-4
Publication status	Published - Jun 2009
Externally published	Yes

Keywords

Aharonov-Anandan phase
Franck-Condon physics
Landau-Zener tunneling
Multiphoton transitions
Superconducting qubits

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Statistical and Nonlinear Physics
Theoretical Computer Science
Signal Processing
Modeling and Simulation
Electrical and Electronic Engineering

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10.1007/s11128-009-0102-4

Cite this

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abstract = "We investigate phase-sensitive interference effects in a periodically sin(2π f rf t)-driven, artificial two-state system connected to a microwave resonator at f LC 800 MHz. We observe two kinds of multiphoton transitions in the two-state system, accompanied by: (1) Several quanta from the drive at f rf and (2) one quantum at f rf and several at f LC. The former are described using phase-sensitive Landau-Zener transitions, while the latter are discussed in terms of vibronic transitions in diatomic molecules. Interference effects in the vibronic transitions governed by Franck-Condon coefficients are also considered.",

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AU - Paila, Antti

AU - Tuorila, Jani

AU - Sillanpää, Mika

AU - Gunnarsson, David

AU - Sarkar, Jayanta

AU - Makhlin, Yuriy

AU - Thuneberg, Erkki

AU - Hakonen, Pertti

PY - 2009/6

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N2 - We investigate phase-sensitive interference effects in a periodically sin(2π f rf t)-driven, artificial two-state system connected to a microwave resonator at f LC 800 MHz. We observe two kinds of multiphoton transitions in the two-state system, accompanied by: (1) Several quanta from the drive at f rf and (2) one quantum at f rf and several at f LC. The former are described using phase-sensitive Landau-Zener transitions, while the latter are discussed in terms of vibronic transitions in diatomic molecules. Interference effects in the vibronic transitions governed by Franck-Condon coefficients are also considered.

AB - We investigate phase-sensitive interference effects in a periodically sin(2π f rf t)-driven, artificial two-state system connected to a microwave resonator at f LC 800 MHz. We observe two kinds of multiphoton transitions in the two-state system, accompanied by: (1) Several quanta from the drive at f rf and (2) one quantum at f rf and several at f LC. The former are described using phase-sensitive Landau-Zener transitions, while the latter are discussed in terms of vibronic transitions in diatomic molecules. Interference effects in the vibronic transitions governed by Franck-Condon coefficients are also considered.

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Interband transitions and interference effects in superconducting qubits

Abstract

Keywords

ASJC Scopus subject areas

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