Coherent Control of Bond Making

Levin, L.; Skomorowski, Wojciech; Rybak, Leonid; Kosloff, Ronnie; Koch, Christiane P.; Amitay, Zohar

doi:10.1103/physrevlett.114.233003

Cited by 76 publications

(74 citation statements)

References 21 publications

(35 reference statements)

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“…Its coherent control was demonstrated only very recently [222]. Full control of a binary reaction -from its entrance channel of scattering reactants to the targeted products in a selected internal state -is still an open goal.…”

Section: State Of the Artmentioning

confidence: 99%

Training Schrödinger’s cat: quantum optimal control

et al. 2015

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Abstract. It is control that turns scientific knowledge into useful technology: in physics and engineering it provides a systematic way for driving a dynamical system from a given initial state into a desired target state with minimized expenditure of energy and resources. As one of the cornerstones for enabling quantum technologies, optimal quantum control keeps evolving and expanding into areas as diverse as quantumenhanced sensing, manipulation of single spins, photons, or atoms, optical spectroscopy, photochemistry, magnetic resonance (spectroscopy as well as medical imaging), quantum information processing and quantum simulation. In this communication, state-of-the-art quantum control techniques are reviewed and put into perspective by a consortium of experts in optimal control theory and applications to spectroscopy, imaging, as well as quantum dynamics of closed and open systems. We address key challenges and sketch a roadmap for future developments. ForewordThe authors of this paper represent the QUAINT consortium, a European Coordination Action on Optimal Control of Quantum Systems, funded by the European Commission Framework Programme 7, Future Emerging Technologies FET-OPEN programme and the Virtual Facility for Quantum Control (VF-QC). This consortium has considerable expertise in optimal control theory and its applications to quantum systems, both in existing areas, such as spectroscopy and imaging, and in emerging quantum technologies, such as quantum information processing, quantum communication, quantum simulation a e-mail: fwm@lusi.uni-sb.de and quantum sensing. The list of challenges for quantum control has been gathered by a broad poll of leading researchers across the communities of general and mathematical control theory, atomic, molecular-, and chemical physics, electron and nuclear magnetic resonance spectroscopy, as well as medical imaging, quantum information, communication and simulation. 144 experts in these fields have provided feedback and specific input on the state of the art, mid-term and long-term goals. Those have been summarized in this document, which can be viewed as a perspectives paper, providing a roadmap for the future development of quantum control. Because such an endeavour can hardly ever be complete (there are many additional areas of quantum control applications, such as spintronics, nano-optomechanical technologies etc.), this roadmap

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Section: State Of the Artmentioning

confidence: 99%

Training Schrödinger’s cat: quantum optimal control

et al. 2015

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“…Ultrafast nuclear rearrangements have been also observed in pump-probe experiments [5]; such processes compete with the expected charge separation in multiply charged molecules [6][7][8]. Therefore, a detailed knowledge of the response of complex molecular systems to ionization or excitation and its influence on chemical reactivity is still a relevant topic today [9,10]. In this context, recent combined experimental and theoretical works have been very valuable in providing pictures of the ion-induced ionization or fragmentation of complex molecular systems [7,8,11,12].…”

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confidence: 99%

Determination of Energy-Transfer Distributions in Ionizing Ion-Molecule Collisions

et al. 2016

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The ionization and fragmentation of the nucleoside thymidine in the gas phase has been investigated by combining ion collision with state-selected photoionization experiments and quantum chemistry calculations. The comparison between the mass spectra measured in both types of experiments allows us to accurately determine the distribution of the energy deposited in the ionized molecule as a result of the collision. The relation of two experimental techniques and theory shows a strong correlation between the excited states of the ionized molecule with the computed dissociation pathways, as well as with charge localization or delocalization.

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“…This can mainly be attributed to the more favorable Franck-Condon factors in the temporal evolution of the ionization process for positive chirp [18]. Particularly, a vibrational state distribution shift may be relevant in our chip dependent results, similar as described in [19]. This could shift the vibrational distribution to lower values for positive chirps which leads to stronger bound alkali dimers and hence increased dimer ion signal.…”

Section: Chirp Dependence Of Cluster Ionizationmentioning

confidence: 49%

Selection of ionization paths of K2 on superfluid helium droplets by wave packet interference

Hild

Dufour

Achazi

et al. 2016

Chemical Physics Letters

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a b s t r a c tWe report on the control of wave packet dynamics for the ionization of K 2 attached to the surface of superfluid helium droplets. The superfluid helium matrix acts as a heat sink and reduces the coherence time of molecular processes by dissipation. We use tailor-shaped pulses in order to activate or inhibit different ionization paths by constructive or destructive wave packet interference. A drastic change of the wave packet dynamics is observed by shifting the phase between the exciting sub pulses.

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Coherent Control of Bond Making

Cited by 76 publications

References 21 publications

Training Schrödinger’s cat: quantum optimal control

Training Schrödinger’s cat: quantum optimal control

Determination of Energy-Transfer Distributions in Ionizing Ion-Molecule Collisions

Selection of ionization paths of K2 on superfluid helium droplets by wave packet interference

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