Optical control of collisional population flow between molecular electronic states of different spin multiplicity

Ahmed, Ergin; Pan, Xinhua; Huennekens, J.; Lyyra, A. M.

doi:10.1103/physreva.89.061401

Cited by 4 publications

(6 citation statements)

References 25 publications

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“…(5) and (6) into Eqs. (21) and (22) and rearrange terms to emphasize singlet and triplet components:…”

Section: A Model For Spin-orbit and Non-adiabatic Interactions Betwementioning

confidence: 99%

“…19,20 In a related experiment, the collisional excitation transfer rate between two electronic states was also enhanced using the Autler-Townes effect. 21 Constructive and destructive interference between singlet and triplet pathways, leading, in some cases, to complete disappearance of spectral lines, was observed in experiments on the NaK molecule. 22 Alkali diatomic molecules are also central to current efforts to produce ultracold molecules in their lowest ro-vibrational levels.…”

Section: Introductionmentioning

confidence: 98%

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Experimental studies of the NaCs 12(0+) [71Σ+] state: Spin-orbit and non-adiabatic interactions and quantum interference in the 12(0+) [71Σ+] and 11(0+) [53Π] emission spectra

Faust

Jones

Huennekens

et al. 2017

The Journal of Chemical Physics

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We present results from experimental studies of the 11(0) and 12(0) electronic states of the NaCs molecule. An optical-optical double resonance method is used to obtain Doppler-free excitation spectra. Selected data from the 11(0) and 12(0) high-lying electronic states are used to obtain Rydberg-Klein-Rees and Inverse Perturbation Approach potential energy curves. Interactions between these two electronic states are evident in the patterns observed in the bound-bound and bound-free fluorescence spectra. A model, based on two separate interaction mechanisms, is presented to describe how the wavefunctions of the two states mix. The electronic parts of the wavefunctions interact via spin-orbit coupling, while the individual rotation-vibration levels interact via a second mechanism, which is likely to be non-adiabatic coupling. A modified version of the BCONT program was used to simulate resolved fluorescence from both upper states. Parameters of the model that describe the two interaction mechanisms were varied until simulations were able to adequately reproduce experimental spectra.

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“…(5) and (6) into Eqs. (21) and (22) and rearrange terms to emphasize singlet and triplet components:…”

Section: A Model For Spin-orbit and Non-adiabatic Interactions Betwementioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Experimental studies of the NaCs 12(0+) [71Σ+] state: Spin-orbit and non-adiabatic interactions and quantum interference in the 12(0+) [71Σ+] and 11(0+) [53Π] emission spectra

Faust

Jones

Huennekens

et al. 2017

The Journal of Chemical Physics

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“…Refs. [14][15][16][17][18][19][20][21]. The perturbed singlet-triplet states, arising from the level mixing due to the spin-orbit coupling, represent a gateway to gain access to the otherwise dark triplet states in these systems.…”

Section: Introductionmentioning

confidence: 99%

“…Refs. [17,18] introduce an alternative approach based on longer time scales, but leading to a more efficient singlet-triplet transfer. Controlling the spin character of a spin-orbit coupled pair of levels, the Autler-Townes effect acts as an alloptical spin switch between singlet and triplet manifolds.…”

Section: Introductionmentioning

confidence: 99%

“…While the experiments of [16][17][18] with lithium molecules are basically in a continuous-wave regime, the present target is to modify the Autler-Townes quantum control in order to realize a time-dependent quantum transfer satisfying high-level requests for fidelity, robustness and speed. This scheme realizes a triggered and fast all-optical spin switch.…”

Section: Introductionmentioning

confidence: 99%

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High-fidelity quantum control via Autler-Townes splitting

Delvecchio

Kirova²,

Arimondo³

et al. 2022

Phys. Rev. A

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We propose quantum control protocols for the high-fidelity preparation of target-states in systems with Autler-Townes splitting. We investigate an approximated three-level system obtained from a four-level one by adiabatically eliminating a state that does not participate in the evolution. In our work we use linear, arctan and Roland-Cerf functions for transferring population between two eigenstates of the system obtaining a high fidelity for long evolution times. Additionally, in order to overcome the restriction given by the lifetimes of the experimental setup, we propose an accelerated adiabatic evolution with a shortcut to adiabaticity protocol, which allows us to reach fidelities close to one but much faster.

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Electromagnetically induced transparency in a dipolar molecular system with Laguerre–Gaussian mode

Mishra

Jagatap

2020

Journal of Modern Optics

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Optical control of collisional population flow between molecular electronic states of different spin multiplicity

Cited by 4 publications

References 25 publications

Experimental studies of the NaCs 12(0+) [71Σ+] state: Spin-orbit and non-adiabatic interactions and quantum interference in the 12(0+) [71Σ+] and 11(0+) [53Π] emission spectra

Experimental studies of the NaCs 12(0+) [71Σ+] state: Spin-orbit and non-adiabatic interactions and quantum interference in the 12(0+) [71Σ+] and 11(0+) [53Π] emission spectra

High-fidelity quantum control via Autler-Townes splitting

Electromagnetically induced transparency in a dipolar molecular system with Laguerre–Gaussian mode

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