Multi-fragment vector correlation imaging. A search for hidden dynamical symmetries in many-particle molecular fragmentation processes

Trinter, Florian; Schmidt, L. Ph. H.; Jahnke, T.; Schöffler, M. S.; Jagutzki, O.; Czasch, A.; Lower, Julian; Isaev, T. A.; Berger, Robert; Landers, A. L.; Weber, Thorsten; Dørner, R.; Schmidt‐Böcking, H.

doi:10.1080/00268976.2012.686642

Cited by 7 publications

(18 citation statements)

References 21 publications

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“…Parallel in time to the measurements by Alan Landers and Thorsten Weber et al, also the group of Anne Lafosse et al located in Paris in cooperation with the Frankfurt group performed such measurements using C-REMI approach [117]. More photo-ionization measurements of molecules have been performed in the last two decades using the C-REMI approach (see, e.g., [118][119][120][121][122]). Jahnke et al [118] performed corresponding measurements using circularly polarized photons providing first full 3-dimensional molecular frame photoelectron angular distributions, as shown in Fig.…”

Section: Single Photon Ionization Of Moleculesmentioning

confidence: 99%

“…At the ALS in Berkeley Thorsten Weber and Michael Prior, in collaboration with the KSU and Frankfurt groups performed several further studies [120,121] including the measurement of the complete photon induced fragmentation of D 2 . With the support of the theory groups of Bill McCurdy in Berkeley and Fernando Martin in Madrid, fundamental information on symmetry breaking in the D 2 fragmentation processes was deduced.…”

Section: Single Photon Ionization Of Moleculesmentioning

confidence: 99%

“…The molecular orientation is indicated by the bar-bell with Carbon on the left. Only events with a KER value >11 eV are selected, which ensures the axial recoil approximation [121] example of fragmentation using C-REMI the experimenter has measured all together 24 momentum components and two charge states (the angular momentum vector of the photon, 5 electron momentum vectors and two momentum vectors of the ionic fragments).…”

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

“…From the measured vectors L γ and p fn (L γ angular momentum vector of the photon and p fn the momentum vector of the n-th emitted electron) one can define new dynamical coordinate systems, e.g. L γ x p f1 = Z y1 and p f1 × p f2 = Z 12 and plot the delayed electron-emission probabilities emitted in step 2,3,.. with respect to these new coordinates [121]. This new pump & multiple-probe MPT approach enables the investigation of fundamental dynamical processes in many-particle systems, like time or parity symmetry breaking.…”

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

“…In [121] for 306 eV right and left handed photons on Carbon Monoxide CO the vector correlations between the 10 eV photo electron, the K-shell Auger electron (Carbon) and the singly charged ionic fragments were measured (Fig. 38).…”

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

See 4 more Smart Citations

High-Resolution Momentum Imaging—From Stern’s Molecular Beam Method to the COLTRIMS Reaction Microscope

Jahnke

Mergel

Jagutzki

et al. 2021

Molecular Beams in Physics and Chemistry

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Multi-particle momentum imaging experiments are now capable of providing detailed information on the properties and the dynamics of quantum systems in Atomic, Molecular and Photon (AMO) physics. Historically, Otto Stern can be considered the pioneer of high-resolution momentum measurements of particles moving in a vacuum and he was the first to obtain sub-atomic unit (a.u.) momentum resolution (Schmidt-Böcking et al. in The precision limits in a single-event quantum measurement of electron momentum and position, these proceedings [1]). A major contribution to modern experimental atomic and molecular physics was his so-called molecular beam method [2], which Stern developed and employed in his experiments. With this method he discovered several fundamental properties of atoms, molecules and nuclei [2, 3]. As corresponding particle detection techniques were lacking during his time, he was only able to observe the averaged footprints of large particle ensembles. Today it is routinely possible to measure the momenta of single particles, because of the tremendous progress in single particle detection and data acquisition electronics. A “state-of-the-art” COLTRIMS reaction microscope [4–11] can measure, for example, the momenta of several particles ejected in the same quantum process in coincidence with sub-a.u. momentum resolution. Such setups can be used to visualize the dynamics of quantum reactions and image the entangled motion of electrons inside atoms and molecules. This review will briefly summarize Stern’s work and then present in longer detail the historic steps of the development of the COLTRIMS reaction microscope. Furthermore, some benchmark results are shown which initially paved the way for a broad acceptance of the COLTRIMS approach. Finally, a small selection of milestone work is presented which has been performed during the last two decades.

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Section: Single Photon Ionization Of Moleculesmentioning

confidence: 99%

Section: Single Photon Ionization Of Moleculesmentioning

confidence: 99%

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

Section: Multi-fragment Vector Correlations In Inner Shell Single-photon Ionization Processes Of Atoms and Molecules-dynamics Of Entanglementioning

confidence: 99%

See 3 more Smart Citations

High-Resolution Momentum Imaging—From Stern’s Molecular Beam Method to the COLTRIMS Reaction Microscope

Jahnke

Mergel

Jagutzki

et al. 2021

Molecular Beams in Physics and Chemistry

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The COLTRIMS Reaction Microscope—The Spyhole into the Ultrafast Entangled Dynamics of Atomic and Molecular Systems

Schmidt‐Böcking

Ullrich²,

Dørner

et al. 2021

Annalen der Physik

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The COLTRIMS Reaction Microscope C‐REMI can image the momentum vectors of all emitted charged fragments in an atomic or molecular reactions similar to the bubble chamber in high energy particle physics. C‐REMI can detect fragments with “zero” kinetic energy in an ultrahigh vacuum environment by projecting them with weak electromagnetic fields onto position‐sensitive detectors. Geometrically a nearly 4π collection solid angle and a nearly 50% efficiency for a fivefold multi‐coincidence can be achieved. Measuring time‐of‐flight and detector position the momenta of the fragments can be measured with excellent resolution (<0.01 a.u.; see A1 in the Appendix). Thus, multivector correlations in momentum space are measured, which provide insight into the entangled dynamics of atomic and molecular quantum systems. From these vector‐correlations phases and energies can be deduced which allow for relative time measurements even in the zeptosecond range. C‐REMI provides a “spyhole” into the secrets of ultrafast dynamics of atomic and molecular processes. It is applied today around the globe in numerous research projects in physics and chemistry. The purpose for writing this article is to demonstrate the universal application possibilities of C‐REMI, and its high multi‐coincidence efficiency and high momentum resolution. This paper will not give a review on all milestone experiments performed with C‐REMI.

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Stereochemical configuration and selective excitation of the chiral molecule halothane

Pitzer

Kastirke

Burzynski

et al. 2016

J. Phys. B: At. Mol. Opt. Phys.

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X-ray single-photon ionization and fragmentation of the chiral molecule halothane (CHBrClCF3) from a racemic mixture have been investigated using the COLTRIMS (Cold Target Recoil Ion Momentum Spectroscopy) technique. Two important facets related to the core ionization of this species are examined: Firstly, the distinction of enantiomers (mirror iso-1 arXiv:1609.07913v1 [physics.chem-ph] 26 Sep 2016 mers) and the determination of absolute configuration on a single-molecule level by four-body Coulomb explosion; secondly, the interplay of siteselective excitation and fragmentation patterns. These results are easily transferrable to other molecular species and show the wealth of features that can be investigated by coincidence spectroscopy of chiral molecules.

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Multi-fragment vector correlation imaging. A search for hidden dynamical symmetries in many-particle molecular fragmentation processes

Cited by 7 publications

References 21 publications

High-Resolution Momentum Imaging—From Stern’s Molecular Beam Method to the COLTRIMS Reaction Microscope

High-Resolution Momentum Imaging—From Stern’s Molecular Beam Method to the COLTRIMS Reaction Microscope

The COLTRIMS Reaction Microscope—The Spyhole into the Ultrafast Entangled Dynamics of Atomic and Molecular Systems

Stereochemical configuration and selective excitation of the chiral molecule halothane

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