Steering population flow in coherently driven lossy quantum ladders

Yatsenko, L. P.; Rangelov, Andon A.; Vitanov, Nikolay V.; Shore, Bruce W.

doi:10.1063/1.2203630

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…When the S pulse precedes the P pulse, as in STIRAP, almost the entire population passes through state 3. An analytic description of this process has been presented by Yatsenko et al (2006).…”

Section: Control Of Loss Channelsmentioning

confidence: 99%

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

Vitanov¹,

Rangelov²,

Shore³

et al. 2017

Rev. Mod. Phys.

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772

717

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The technique of stimulated Raman adiabatic passage (STIRAP), which allows efficient and selective population transfer between quantum states without suffering loss due to spontaneous emission, was introduced in 1990 (Gaubatz et al., J. Chem. Phys. 92, 5363, 1990). Since then STIRAP has emerged as an enabling methodology with widespread successful applications in many fields of physics, chemistry and beyond. This article reviews the many applications of STIRAP emphasizing the developments since 2000, the time when the last major review on the topic was written (Vitanov et al., Adv. At. Mol. Opt. Phys. 46, 55, 2001). A brief introduction into the theory of STIRAP and the early applications for population transfer within three-level systems is followed by the discussion of several extensions to multilevel systems, including multistate chains and tripod systems. The main emphasis is on the wide range of applications in atomic and molecular physics (including atom optics, cavity quantum electrodynamics, formation of ultracold molecules, etc.), quantum information (including single-and two-qubit gates, entangled-state preparation, etc.), solid-state physics (including processes in doped crystals, nitrogen-vacancy centers, superconducting circuits, semiconductor quantum dots and wells), and even some applications in classical physics (including waveguide optics, polarization optics, frequency conversion, etc.). Promising new prospects for STIRAP are also presented (including processes in optomechanics, precision experiments, detection of parity violation in molecules, spectroscopy of core-nonpenetrating Rydberg states, population transfer with X-ray pulses, etc.).

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Section: Control Of Loss Channelsmentioning

confidence: 99%

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

Vitanov¹,

Rangelov²,

Shore³

et al. 2017

Rev. Mod. Phys.

Self Cite

772

717

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show abstract

“…In LICS-STIRAP the initial times are important, but the final times are not, because there is no population left in the discrete states. In this respect, LICS-STIRAP is similar to STIRAP between lossy states [16].…”

Section: Numerical Examplesmentioning

confidence: 82%

“…This assumption derives from our interest in the regime of large ionization, which requires strong laser fields. In this case we can approximate the eigenvalues and the eigenvectors by assuming that the ratio Ω/ √ Γ i Γ c is a small parameter [16]. After simple algebra we obtain…”

Section: B Analytical Descriptionmentioning

confidence: 99%

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Stimulated Raman adiabatic passage into continuum

2007

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We propose a technique, which produces nearly complete ionization of the population of a discrete state, coupled to a continuum by a two-photon transition via a lossy intermediate state, whose lifetime is much shorter than the interaction duration. We show that using counterintuitively ordered pulses, as in stimulated Raman adiabatic passage (STIRAP), wherein the pulse coupling the intermediate state to the continuum precedes and partly overlaps the pulse coupling the initial and intermediate states, greatly increases the ionization signal and strongly reduces the population loss due to spontaneous emission through the lossy state. For strong spontaneous emission from that state, however, the ionization is never complete because the dark state required for STIRAP does not exist. We demonstrate that this drawback can be eliminated almost completely by creating a laser-induced continuum structure (LICS) by embedding a third discrete state into the continuum with a third, control laser. This LICS introduces some coherence into the continuum, which enables a STIRAP-like population transfer into the continuum. A highly accurate analytic description is developed and numerical results are presented for Gaussian pulse shapes.

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“…A careful analysis of the population dynamics 11 shows that the following condition has to be fulfilled:…”

Section: B Control Through Laser Powermentioning

confidence: 99%

Experimental control of excitation flow produced by delayed pulses in a ladder of molecular levels

Garcia-Fernandez

Shore

Бергманн

et al. 2006

The Journal of Chemical Physics

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We study a method for controlling the flow of excitation through decaying levels in a three-level ladder excitation scheme in Na(2) molecules. Like the stimulated Raman adiabatic passage (STIRAP), this method is based on the control of the evolution of adiabatic states by a suitable delayed interaction of the molecules with two radiation fields. However, unlike STIRAP, which transfers a population between two stable levels g and f via a decaying intermediate level e through the interaction of partially overlapping pulses (usually in a Lambda linkage), here the final level f is not long lived. Therefore, the population reaching level f decays to other levels during the transfer process. Thus, rather than controlling the transfer into level f, we control the flow of the population through this level. In the present implementation a laser P couples a degenerate rovibrational level in the ground electronic state X 1Sigma(g)+, v" = 0, j" = 7 to the intermediate level A 1Sigma(u)+, v' = 10, J' = 8, which in turn is linked to the final level 5 1Sigma(g)+, v = 10, J = 9 by a laser S, from which decay occurs to vibrational levels in the electronic A and X states. As in STIRAP, the maximum excitation flow through level f is observed when the P laser precedes the S laser. We study the influence of the laser parameters and discuss the consequences of the detection geometry on the measured signals. In addition to verifying the control of the flow of population through level f we present a procedure for the quantitative determination of the fraction kappa(f) of molecules initially in the ground level which is driven through the final level f. This calibration method is applicable for any stepwise excitation.

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Steering population flow in coherently driven lossy quantum ladders

Cited by 6 publications

References 13 publications

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

Stimulated Raman adiabatic passage into continuum

Experimental control of excitation flow produced by delayed pulses in a ladder of molecular levels

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