Detuning dependent Rabi oscillations of a single molecule

Rezai, Mohammad; Wrachtrup, Jörg; Gerhardt, Ilja

doi:10.1088/1367-2630/ab130e

Cited by 18 publications

(12 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the molecules' auto-correlation curve shows coherent oscillations between the ground and the excited state, so-called Rabi oscillations [24,27]. To fit the curve in Fig.…”

Section: Resultsmentioning

confidence: 99%

A narrow-band sodium-resonant fiber-coupled single photon source

Stein,

Bushmakin,

Wang

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

Quantum technology requires the creation and control over single photons as an important resource. We present a single photon source based on a single molecule which is attached to the end-facet of an optical fiber. To realize a narrow linewidth, the system is cooled down to liquidhelium temperatures. The molecule is optically excited and its fluorescence is collected through the fiber. We have recorded an excitation spectrum, a saturation curve and analyzed the contributions of Raman background fluorescence. This presents to date the crucial limit for the introduced device. The single photon nature is proven by an anti-bunched auto-correlation recording, which also shows coherent Rabi oscillations.

show abstract

“…Additionally, the molecules' auto-correlation curve shows coherent oscillations between the ground and the excited state, so-called Rabi oscillations [24,27]. To fit the curve in Fig.…”

Section: Resultsmentioning

confidence: 99%

A narrow-band sodium-resonant fiber-coupled single photon source

Stein,

Bushmakin,

Wang

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…(e) Calculation of the detuning-dependent autocorrelation function in a two-level system. Under a detuned driving, the effective Rabi-frequency 45,46 is represented as √ Ω 2 + ∆ 2 . In the calculation, the dephasing is again set to zero, and the values of ∆/Γ are taken from (d).…”

Section: Methodsmentioning

confidence: 99%

Low-Noise GaAs Quantum Dots for Quantum Photonics

Zhai,

Löbl,

Nguyen

et al. 2020

Preprint

View full text Add to dashboard Cite

Quantum dots are both excellent single-photon sources and hosts for single spins. This combination enables the deterministic generation of Raman-photons -bandwidth-matched to an atomic quantum-memory -and the generation of photon cluster states, a resource in quantum communication and measurement-based quantum computing. GaAs quantum dots in AlGaAs can be matched in frequency to a rubidium-based photon memory, and have potentially improved electron spin coherence compared to the widely used InGaAs quantum dots. However, their charge stability and optical linewidths are typically much worse than for their InGaAs counterparts. Here, we embed GaAs quantum dots into an n-i-p-diode specially designed for low-temperature operation. We demonstrate ultra-low noise behaviour: charge control via Coulomb blockade, close-to lifetimelimited linewidths, and no blinking. We observe high-fidelity optical electron-spin initialisation and long electron-spin lifetimes for these quantum dots. Our work establishes a materials platform for low-noise quantum photonics close to the red part of the spectrum.

show abstract

“…Simulating the time-evolution of state populations using Bloch equations has improved laser spectroscopy of molecules [52], muonium [53] and highly charged ions [54]. Similarly, the findings of population dynamics obtained from Eq.…”

Section: ρ33 At the Experimental Conditionsmentioning

confidence: 96%

Laser excitation of the 1s-hyperfine transition in muonic hydrogen

et al. 2022

View full text Add to dashboard Cite

The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (\muμp) with 1 ppm accuracy by means of pulsed laser spectroscopy to determine the two-photon-exchange contribution with 2\times10^{-4}2×10−4 relative accuracy. In the proposed experiment, the \muμp atom undergoes a laser excitation from the singlet hyperfine state to the triplet hyperfine state, {then} is quenched back to the singlet state by an inelastic collision with a H_22 molecule. The resulting increase of kinetic energy after the collisional deexcitation is used as a signature of a successful laser transition between hyperfine states. In this paper, we calculate the combined probability that a \muμp atom initially in the singlet hyperfine state undergoes a laser excitation to the triplet state followed by a collisional-induced deexcitation back to the singlet state. This combined probability has been computed using the optical Bloch equations including the inelastic and elastic collisions. Omitting the decoherence effects caused by {the laser bandwidth and }collisions would overestimate the transition probability by more than a factor of {two in the experimental conditions. Moreover,} we also account for Doppler effects and provide the matrix element, the saturation fluence, the elastic and inelastic collision rates for the singlet and triplet states, and the resonance linewidth. This calculation thus quantifies one of the key unknowns of the HFS experiment, leading to a precise definition of the requirements for the laser system and to an optimization of the hydrogen gas target where \muμp is formed and the laser spectroscopy will occur.

show abstract

Detuning dependent Rabi oscillations of a single molecule

Cited by 18 publications

References 35 publications

A narrow-band sodium-resonant fiber-coupled single photon source

A narrow-band sodium-resonant fiber-coupled single photon source

Low-Noise GaAs Quantum Dots for Quantum Photonics

Laser excitation of the 1s-hyperfine transition in muonic hydrogen

Contact Info

Product

Resources

About