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Electromagnetically induced transparency (EIT) is a well-known phenomenon due in part to its applicability to quantum devices such as quantum memories and quantum gates. EIT is commonly modeled with a three-level lambda system due to the…

Quantum Physics · Physics 2022-07-21 Saesun Kim , Alberto M. Marino

Ac electrokinetic flows are commonly used for manipulating micron-scale particles in a biosensor system. At the solid-liquid state there are two kinds of processes in the reaction between analytes and ligands: the mass transport process and…

Other Computer Science · Computer Science 2008-02-22 M. C. Wu , J. S. Chang , C. -K. Yang

This paper presents a nonperturbative treatment of strong-coupling induced effects in atom-field systems which cannot be seen in traditional perturbative treatments invoking compromising assumptions such as the Born-Markov, rotating wave or…

Quantum Physics · Physics 2020-02-25 Jen-Tsung Hsiang , Bei-Lok Hu

Interactions between molecules and electrode surfaces play a key role in electrochemical processes and are a subject of extensive research, both experimental and theoretical. In this manuscript, we address the water dissociation reaction on…

Chemical Physics · Physics 2023-02-16 Karen Fidanyan , Guoyuan Liu , Mariana Rossi

The interaction between excited states of a closed-shell chromophore and a nearby free radical species gives rise to spin-coupled doublet states, namely singdoublet and tripdoublet, as well as a quartet state. This coupling facilitates…

Chemical Physics · Physics 2025-03-25 Chenyu Liu , Yang Xu , Peng Bao , Yangyi Lu , Jiali Gao

Chemisorbed molecules at a fuel cell electrode are a very sensitive probe of the surrounding electrochemical environment, and one that can be accurately monitored with different spectroscopic techniques. We develop a comprehensive…

Materials Science · Physics 2010-09-28 I. Dabo , E. Cancès , Y. L. Li , N. Marzari

In this contribution we review in a rigorous, yet comprehensive fashion the assessment of the one-body reduced density matrices derived from the most used single-reference excited-state calculation methods in the framework of the…

Chemical Physics · Physics 2021-04-19 Thibaud Etienne

This work presents a series of highly-accurate excited-state properties obtained using high-order coupled-cluster (CC) calculations performed with a series of diffuse containing basis sets, as well as extensive comparisons with experimental…

Chemical Physics · Physics 2021-06-14 Amara Chrayteh , Aymeric Blondel , Pierre-François Loos , Denis Jacquemin

The photoinduced excited-state dynamics of the keto and enol forms of cytosine is investigated using ab initio surface hopping in order to understand the outcome of molecular beam femtosecond pump-probe photoionization spectroscopy…

We report on single-object spectroscopic studies of a characteristic set of three resonances which appear in GaAlAs/AlAs quantum dot structures. The experiments included the photoluminescence (PL) and photoluminescence excitation (PLE)…

Mesoscale and Nanoscale Physics · Physics 2016-07-11 M. R. Molas , A. A. L. Nicolet , B. Pietka , A. Babinski , M. Potemski

I revisit the problem of the interaction between two dissimilar atoms with one atom in an excited state, recently addressed by the authors of Refs.[1-3], and for which precedent approaches have given conflicting results. In the first place,…

Quantum Physics · Physics 2016-05-25 Manuel Donaire

State-selected Coulomb-crystallized molecular ions were employed for the first time in ion-molecule reaction studies using the prototypical charge-transfer process $\mathrm{N_2^++N_2\rightarrow N_2+N_2^+}$ as an example. By preparing the…

Chemical Physics · Physics 2015-06-05 Xin Tong , Tibor Nagy , Juvenal Yosa Reyes , Matthias Germann , Markus Meuwly , Stefan Willitsch

The development of X-ray free-electron lasers (XFELs) has enabled ultrafast X-ray diffraction (XRD) experiments, which are capable of resolving electronic/vibrational transitions and structural changes in molecules, or capturing molecular…

Chemical Physics · Physics 2024-08-29 Sebastian V. Pios , Jiaji Zhang , Maxim F. Gelin , Hong-Guang Duan , Lipeng Chen

Chemiluminescence in 1,2-dioxetane occurs through a thermally activated decomposition reaction into two formaldehyde molecules. Both ground-state and nonadiabatic dynamics (including singlet excited states) of the decomposition reaction…

Chemical Physics · Physics 2017-05-09 Morgane Vacher , Anders Brakestad , Hans O. Karlsson , Ignacio Fdez. Galvan , Roland Lindh

In excited molecules, the interaction between the covalent Rydberg and ion-pair channels forms a unique class of excited Rydberg states, in which the infinite manifold of vibrational levels are the equivalent of atomic Rydberg states with a…

Atomic Physics · Physics 2016-06-22 Samuel Markson , Hossein Sadeghpour

Exploring inelastic and reactive collisions on the quantum level is a main goal of the developing field of ultracold chemistry. We present first experimental studies of inelastic collisions of metastable ultracold triplet molecules in the…

The entanglement of an optically generated electron-hole pair in artificial quantum dot molecules is calculated considering the effects of decoherence by interaction with environment. Since the system evolves into a mixed states and due to…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 H. S. Borges , L. Sanz , A. M. Alcalde

We investigate a singly-charged quantum dot under a strong optical driving field by probing the system with a weak optical field. When the driving field is detuned from the trion transition, the probe absorption spectrum is shifted from the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Xiaodong Xu , Bo Sun , Erik D. Kim , Katherine Smirl , P. R. Berman , D. G. Steel , A. S. Bracker , D. Gammon , L. J. Sham

We use transient absorption spectroscopy to monitor the ionization and dissociation products following two-photon excitation of pure liquid water. The two decay mechanisms occur with similar yield for an excitation energy of 9.3 eV, whereas…

Chemical Physics · Physics 2009-11-13 Christopher G. Elles , Ilya A. Shkrob , Robert A. Crowell , Stephen E. Bradforth

In this work, we report results from our extensive spectroscopic study on AlF and AlCl molecules, keeping in mind potential laboratory as well as astrophysical applications. We carry out detailed electronic structure calculations in both…

Atomic Physics · Physics 2023-03-16 R. Bala , V. S. Prasannaa , D. Chakravarti , D. Mukherjee , B. P. Das
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