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We have experimentally and theoretically investigated the mixed-field orientation of rotational-state-selected OCS molecules and we achieve strong degrees of alignment and orientation. The applied moderately intense nanosecond laser pulses…

We describe the results of experiments and simulations performed with the aim of extending photoelectron spectroscopy with intense laser pulses to the case of molecular compounds. Dimer frame photoelectron angular distributions generated by…

The uncorrelated (``sequential'') and correlated (``nonsequential'') double ionization of the H2 molecule in strong laser pulses is investigated using the tools of nonlinear dynamics. We focus on the phase-space dynamics of this system,…

Chaotic Dynamics · Physics 2009-11-30 François Mauger , Cristel Chandre , T. Uzer

The subtle and fundamental issue of indistinguishability and interference between independent pathways to the same target state is examined in the context of coherent control of atomic and molecular processes, with emphasis placed on…

Quantum Physics · Physics 2015-05-18 Jiangbin Gong , Paul Brumer

We have carried out calculations of the triple-differential cross section for one-photon double ionization of molecular hydrogen for a central photon energy of $75$~eV, using a fully {\it ab initio}, nonperturbative approach to solve the…

Atomic Physics · Physics 2016-11-17 Xiaoxu Guan , Klaus Bartschat , Barry I. Schneider

Through considering a two-component dipolar Bose-Einstein condensate, we investigate the influence of the angle between the polarization orientations of the two species on the ground states, and show that the miscibility between the two…

Quantum Gases · Physics 2024-05-22 Liang-Jun He , Bo Liu , Yong-Chang Zhang

A nanophotonic waveguide coupled with an atomic array forms one of the strongly-coupled quantum interfaces to showcase many fascinating collective features of quantum dynamics. In particular for a dissimilar array of two different…

We introduce the concept of directional coupling, i.e., the selective transfer of a state between adjacent quantum wires, in the context of quantum computing and short-distance communication. Our analysis rests upon a mathematical analogy…

Quantum Physics · Physics 2008-12-09 Georgios M. Nikolopoulos

This study shows the unexpected and counter-intuitive possibility of simultaneously orienting a molecule while delocalizing its molecular axis in a plane in field-free conditions. The corresponding quantum states are characterized and…

Quantum Physics · Physics 2022-10-26 D. Sugny

We consider the dynamics of electrons in combined strong laser and Coulomb fields. Under a timescale separation condition, we reduce this dynamics to a guiding-center framework. More precisely, we derive a hierarchy of models for the…

Chaotic Dynamics · Physics 2018-11-28 Jonathan Dubois , S. Berman , C. Chandre , T. Uzer

Inducing and controlling the ultrafast molecular rotational dynamics using shaped laser fields is essential in numerous applications. Several approaches exist that allow following the coherent molecular motion in real-time, including…

Dynamical decoupling operations have been shown to reduce errors in quantum information processing. Leakage from an encoded subspace to the rest of the system space is a particularly serious problem for which leakage elimination operators…

Quantum Physics · Physics 2015-07-06 Jun Jing , Lian-Ao Wu , Mark Byrd , J. Q. You , Ting Yu , Zhao-Ming Wang

We theoretically consider the phenomenon of field-free long-lasting orientation of symmetric-top molecules ionized by two-color laser pulses. The anisotropic ionization produces a significant long-lasting orientation of the surviving…

Chemical Physics · Physics 2023-03-08 Long Xu , Ilia Tutunnikov , Yehiam Prior , Ilya Sh. Averbukh

Coherent light has revolutionized scientific research, spanning biology, chemistry, and physics. To delve into ultrafast phenomena, the development of high-energy, high-tunable light sources is instrumental. Here, the photo-electric effect…

Atomic Physics · Physics 2023-11-29 Camilo Granados , Enrique G. Neyra , Lorena Rebón , Marcelo F. Ciappina

In this work, we have investigated conduction through an artificial molecule comprising two coupled quantum dots. The question addressed is the role of inter-dot coupling on electronic transport. We find that the current through the…

Mesoscale and Nanoscale Physics · Physics 2011-09-22 M. Imran , B. Tariq , M. Tahir , K. Sabeeh

A moderately intense $450$ fs laser pulse is used to create rotational wave packets in gas phase $\rm{I_2}$ molecules. The ensuing time-dependent alignment, measured by Coulomb explosion imaging with a delayed probe pulse, exhibits the…

The latest molecular data - potential energy curves and Rydberg$/$valence interactions - characterizing the super-excited electronic states of CO are reviewed, in order to provide inputs for the study of their fragmentation dynamics.…

We have developed a theory of three-pulse coherent control of photochemical processes. It is based on adiabatic passage and quantum coherence and interference attributed to the lower-lying dissociation continuum and excited upper discrete…

Quantum Physics · Physics 2009-11-10 A. K. Popov , V. V. Kimberg , Thomas F. George

Molecular polaritons are hybrid states of photonic and molecular character that form when molecules strongly interact with light. Strong coupling tunes energy levels and importantly, can modify molecular properties (e.g. photoreaction…

Chemical Physics · Physics 2023-02-14 Francesca Fassioli , Kyu Hyung Park , Sarah E. Bard , Gregory D. Scholes

We have theoretically studied the effect of nuclear mass on electron localization in dissociating H_2^+ and its isotopes subjected to a few-cycle 3-{\mu}m laser pulse. Compared to the isotopic trend in the near-infrared regime, our results…

Atomic and Molecular Clusters · Physics 2015-06-12 Kunlong Liu , Qingbin Zhang , Pengfei Lan , Peixiang Lu
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