Absorption spectra of superconducting qubits driven by bichromatic microwave fields

Pan, Jintao; Jooya, Hossein Z.; Sun, Guozhu; Fan, Ya-Xian; Wu, Peiheng; Telnov, Dmitry A.; Chu, Shih I.; Han, Siyuan

doi:10.1103/physrevb.96.174518

Cited by 18 publications

(11 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that the detuning ∆ 1 (t) = ω 12 − ω c , where ω 12 and ω c are the Bohr frequency of the twolevel atom and the carrier frequency of the control field [66]. Remarkably, it is also suited for describing a superconductor qubit, where Ω 1 (t) and ∆ 1 (t) are dc and ac flux biases, respectively [67][68][69]. Since this Hamiltonian does not impose restrictions on specific systems, we assume that all parameters are adjustable in the following.…”

Section: Kick Dynamics In Two-level Systemsmentioning

confidence: 99%

Effective dynamics and applications in periodic kicks systems

Shi¹,

Chen²,

Wang³

et al. 2022

Preprint

View full text Add to dashboard Cite

In this work, we study the kick dynamics of periodically driven quantum systems, and provide a time-independent effective Hamiltonian with the analytical form to reasonably describe the effective dynamics in a long timescale. We find that the effective coupling strength can be much larger than the coupling strength of the original system in some parameter regions, which stems from the zero time duration of kicks. Furthermore, different regimes can be transformed from and to each other in the same three-level system by only modulating the period of periodic kicks. In particular, the population of excited states can be selectively suppressed in periodic kicks, benefiting from the large detuning regime of the original system. Finally, we demonstrate some applications and physical implementation of periodic kicks in quantum systems. Those unique features would make periodic kicks becoming a powerful tool for quantum state manipulations.

show abstract

Section: Kick Dynamics In Two-level Systemsmentioning

confidence: 99%

Effective dynamics and applications in periodic kicks systems

Shi¹,

Chen²,

Wang³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In quantum optics the bichromatic driving, with an enhanced role played by quantum interferences, was investigated experimentally in different quantum systems, as reviewed in [41,42]. The attention was focused mainly on the absorption of atomic/molecules, and more recently also of artificial atoms in [43][44][45][46][47]. Double irradiations, i.e., rotary saturation, spin tickling, and so on, are powerful tools in magnetic resonance to disentangle complex spectra.…”

Section: Introductionmentioning

confidence: 99%

Harmonic dual dressing of spin one-half systems

Bevilacqua,

Biancalana,

Zanon-Willette

et al. 2021

Preprint

View full text Add to dashboard Cite

Controlled modifications of the quantum magnetic response are produced in dressed systems by a high frequency, strong and not-resonant electromagnetic field. This quantum control is greatly enhanced and enriched by the harmonic, commensurable and orthogonally oriented dual dressing theoretically discussed here. The secondary field enables a fine tuning of the qubit response, with control parameters amplitude, harmonic content, spatial orientation and phase relation. Our analysis is based on a perturbative approach and includes few numerical solutions. The long-time dynamics is described in terms of an anisotropic effective static magnetic field representing the handle for the system full engineering. Through a low-order harmonic mixing the bichromatic driving generates a rectified static field acting on the spin. The Zeeman response becomes anisotropic in a triaxial geometry and includes a quadratic contribution. Our dressing increases the two-level energy splitting, improving the spin detection sensitivity. On the low field direction it compensates the static fields applied in different geometries. A resonant spin exchange between two species having very different magnetic response as electron and nucleus is allowed by the dressing. The spin temporal evolution includes a micromotion at harmonics of the driving frequency whose role in the spin detection is examined and can be exploited in quantum information. The results presented here lay a foundation for additional applications to be harnessed in quantum simulations.

show abstract

“…The specific case of two-level systems driven by two coherent drives of differing frequencies (bichromatic), initially motivated by amplitude-modulated driving, has been theoretically studied (e.g., see Refs. [20][21][22][23][24], as well as experimentally using QDs [14,16,25], atoms [26,27], and superconducting qubits [28]. Experiments on bichromatically driven QDs have studied certain regimes of two-color excitation (including "doubly dressed" states), and have revealed an interference-based suppression of the spectral emission line resonant with the exciton frequency, when driven with a strong resonant laser and a second laser detuned to one of the sidebands of the resultant Mollow triplet, as well as a multiphoton AC stark shift of subharmonic resonances [14,29].…”

Section: Introductionmentioning

confidence: 99%

High-resolution spectroscopy of a quantum dot driven bichromatically by two strong coherent fields

Gustin,

Hanschke,

Boos

et al. 2020

Preprint

View full text Add to dashboard Cite

We present spectroscopic experiments and theory of a quantum dot driven bichromatically by two strong coherent lasers. In particular, we explore the regime where the drive strengths are substantial enough to merit a general non-perturbative analysis, resulting in a rich higher-order Floquet dressedstate energy structure. We present high resolution spectroscopy measurements with a variety of laser detunings performed on a single InGaAs quantum dot, with the resulting features well explained with a time-dependent quantum master equation and Floquet analysis. Notably, driving the quantum dot resonance and one of the subsequent Mollow triplet sidepeaks, we observe the disappearance and subsequent reappearance of the central transition at high detuned-laser pump strengths and additional higher-order effects, e.g. emission triplets at higher harmonics and signatures of higher order Floquet states. For a similar excitation condition but with an off-resonant primary laser, we observe similar spectral features but with an enhanced inherent spectral asymmetry.

show abstract

Absorption spectra of superconducting qubits driven by bichromatic microwave fields

Cited by 18 publications

References 53 publications

Effective dynamics and applications in periodic kicks systems

Effective dynamics and applications in periodic kicks systems

Harmonic dual dressing of spin one-half systems

High-resolution spectroscopy of a quantum dot driven bichromatically by two strong coherent fields

Contact Info

Product

Resources

About