Nanomechanical-resonator-assisted induced transparency in a Cooper-pair box system

Yuan, Xiao-Zhong; Goan, Hsi‐Sheng; Lin, Chien-Hung; Zhu, Ka-Di; Jiang, Yi-Wen

doi:10.1088/1367-2630/10/9/095016

Cited by 15 publications

(11 citation statements)

References 65 publications

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“…It has been widely explored in various contexts (e.g., [3][4][5][6]) since its inception. For example, the EIT effect has been studied in the context of a two-level atom [6], instead of the usual three-level system.…”

Section: A Electromagnetically Induced Transparency In Optics and Sumentioning

confidence: 99%

Tunable electromagnetically induced transparency and absorption with dressed superconducting qubits

2010

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Electromagnetically induced transparency and absorption (EIT and EIA) are usually demonstrated using three-level atomic systems. In contrast to the usual case, we theoretically study the EIT and EIA in an equivalent three-level system: a superconducting two-level system (qubit) dressed by a single-mode cavity field. In this equivalent system, we find that both the EIT and the EIA can be tuned by controlling the level-spacing of the superconducting qubit and hence controlling the dressed system. This tunability is due to the dressed relaxation and dephasing rates which vary parametrically with the level-spacing of the original qubit and thus affect the transition properties of the dressed qubit and the susceptibility. These dressed relaxation and dephasing rates characterize the reaction of the dressed qubit to an incident probe field. Using recent experimental data on superconducting qubits (charge, phase, and flux qubits) to demonstrate our approach, we show the possibility of experimentally realizing this proposal.

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Section: A Electromagnetically Induced Transparency In Optics and Sumentioning

confidence: 99%

Tunable electromagnetically induced transparency and absorption with dressed superconducting qubits

2010

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“…The coupled CPB-NR system has been proposed to measure the vibration frequency of the NR by calculating the absorption spectrum [23]. On the other hand, NRs have widely been used as mass sensors by measuring the resonant frequency shift because of the added mass of the bound particles.…”

Section: Model and Theorymentioning

confidence: 99%

Mass spectrometry based on a coupled Cooper-pair box and nanomechanical resonator system

Jiang

Chen

et al. 2011

Nanoscale Res Lett

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Nanomechanical resonators (NRs) with very high frequency have a great potential for mass sensing with unprecedented sensitivity. In this study, we propose a scheme for mass sensing based on the NR capacitively coupled to a Cooper-pair box (CPB) driven by two microwave currents. The accreted mass landing on the resonator can be measured conveniently by tracking the resonance frequency shifts because of mass changes in the signal absorption spectrum. We demonstrate that frequency shifts induced by adsorption of ten 1587 bp DNA molecules can be well resolved in the absorption spectrum. Integration with the CPB enables capacitive readout of the mechanical resonance directly on the chip.

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“…Electromagnetically-induced transparency (e.g., Refs. [20][21][22][23][24][25][26]) in superconducitng systems has also been theoretically studied. Moreover, Autler-Townes splitting [26][27][28][29][30][31][32] and coherent population trapping [33] have been experimentally demonstrated in different types of SQs with three energy levels.…”

Section: Introductionmentioning

confidence: 99%

Generating nonclassical photon states via longitudinal couplings between superconducting qubits and microwave fields

Zhao

Liu

et al. 2015

Phys. Rev. A

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Besides the conventional transverse couplings between superconducting qubits (SQs) and electromagnetic fields, there are additional longitudinal couplings when the inversion symmetry of the potential energies of the SQs is broken. We study nonclassical-state generation in a SQ which is driven by a classical field and coupled to a single-mode microwave field. We find that the classical field can induce transitions between two energy levels of the SQs, which either generate or annihilate, in a controllable way, different photon numbers of the cavity field. The effective Hamiltonians of these classical-field-assisted multiphoton processes of the singlemode cavity field are very similar to those for cold ions, confined to a coaxial RF-ion trap and driven by a classical field. We show that arbitrary superpositions of Fock states can be more efficiently generated using these controllable multiphoton transitions, in contrast to the single-photon resonant transition when there is only a SQ-field transverse coupling. The experimental feasibility for different SQs is also discussed.

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Nanomechanical-resonator-assisted induced transparency in a Cooper-pair box system

Cited by 15 publications

References 65 publications

Tunable electromagnetically induced transparency and absorption with dressed superconducting qubits

Tunable electromagnetically induced transparency and absorption with dressed superconducting qubits

Mass spectrometry based on a coupled Cooper-pair box and nanomechanical resonator system

Generating nonclassical photon states via longitudinal couplings between superconducting qubits and microwave fields

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