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Related papers: Spatial imaging of the {H_2}^+ vibrational wave fu…

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We present a simple method for determination of absolute vibrational numbering of isolated near dissociation levels in diatomic molecules, usually observed in cold physics experiments. The method is based on the isotope shift and works even…

Chemical Physics · Physics 2020-02-19 Asen Pashov , Pawel Kowalczyk , Wlodzimierz Jastrzebski

We review the current status of obtaining the spectroscopic information on the one-neutron halo nuclei from the Coulomb breakup reactions. The theory of these reactions formulated in the framework of the Distorted Wave Born Approximation,…

Nuclear Theory · Physics 2007-05-23 R. Shyam , R. Chatterjee

We consider the vibrational energy levels of the first two electronic states of the molecule ion $H_2^+$. The Born-Oppenheimer method applied to the case of the Stark effect on a $H_2^+$-like molecule gives existence of sharp resonances…

Mathematical Physics · Physics 2010-09-24 Vincenzo Grecchi , Hynek Kovarik , Andre Martinez , Andrea Sacchetti , Vania Sordoni

We propose a quantum mechanical method of detecting weak vibrational disturbances inspired by the protocol of entanglement farming. We consider a setup where pairs of atoms in their ground state are successively sent through an optical…

We develop a direct derivation for the primary contribution to the vibrational polarizability for molecules, clusters and other finite systems. The vibrational polarizability is then calculated within the generalized gradient approximation…

Other Condensed Matter · Physics 2007-05-23 Mark R. Pederson , Tunna Baruah , Philip B. Allen , Christian Schmidt

We rederive uncertainty relations for the angular position and momentum of a particle on a circle by employing the exponential of the angle instead of the angle itself, which leads to circular variance as a natural measure of resolution.…

Quantum Physics · Physics 2008-07-25 J. Rehacek , Z. Bouchal , R. Celechovsky , Z. Hradil , L. L. Sanchez-Soto

We present in detail and validate an effective Monte Carlo approach for the calculation of the nuclear vibrational densities via integration of molecular eigenfunctions that we have preliminary employed to calculate the densities of the…

Chemical Physics · Physics 2020-12-08 Chiara Aieta , Gianluca Bertaina , Marco Micciarelli , Michele Ceotto

Multidimensional spectroscopy unveils the interplay of nuclear and electronic dynamics, which characterizes the ultrafast dynamics of various molecular and solid-state systems. In a class of models widely used for the simulation of such…

Quantum Physics · Physics 2023-08-28 Frank Ernesto Quintela Rodriguez , Filippo Troiani

A rigorous quantum description of molecular dynamics with a particular emphasis on internal observables is developed accounting explicitly for kinetic couplings between nuclei and electrons. Rotational modes are treated in a genuinely…

Chemical Physics · Physics 2015-07-07 Sylvain D. Brechet , Francois A. Reuse , Klaus Maschke , Jean-Philippe Ansermet

We have computed the gravitational wave signal from supernova core collapse using the presently most realistic input physics available. We start from state-of-the-art progenitor models of rotating and non-rotating massive stars, and…

Astrophysics · Physics 2009-11-10 Ewald Mueller , Markus Rampp , Robert Buras , H. -Thomas Janka , David H. Shoemaker

Vibrational overtones in deeply bound molecules are sensitive probes for variation of the proton-to-electron mass ratio $\mu$. In nonpolar molecules, these overtones may be driven as two-photon transitions. Here, we present procedures for…

Atomic Physics · Physics 2019-01-03 Ryan Carollo , Alexander Frenett , David Hanneke

Vibrational polaritons are formed by strong coupling of molecular vibrations and photon modes in an optical cavity. Experiments have demonstrated that vibrational strong coupling can change molecular properties and even affect chemical…

Quantum Physics · Physics 2025-01-14 Thomas Schnappinger , Cyril Falvo , Markus Kowalewski

Calculations of highly excited and delocalized molecular vibrational states are computationally challenging tasks, which strongly depends on the choice of coordinates for describing vibrational motions. We introduce a new method that…

Gravitational wave detector technology provides high-precision measurement apparatuses that, if combined with a modulated particle source, have the potential to measure and constrain particle interactions in a novel way, by measuring the…

High Energy Physics - Phenomenology · Physics 2018-10-29 Christoph Englert , Stefan Hild , Michael Spannowsky

This work explores the effect of N2 addition on CO2 dissociation and on the vibrational kinetics of CO2 and CO under various non-equilibrium plasma conditions. A self-consistent kinetic model, previously validated for pure CO2 and CO2-O2…

Plasma Physics · Physics 2023-05-31 C. Fromentin , T. Silva , T. C. Dias , E. Baratte , O. Guaitella , V. Guerra

With advanced fabrication techniques it is possible to make nanoscale electronic structures that have discrete energy levels. Such structures are called artificial atoms because of analogy with true atoms. Examples of such atoms are quantum…

Mesoscale and Nanoscale Physics · Physics 2012-06-07 David Gunnarsson , Jani Tuorila , Antti Paila , Jayanta Sarkar , Erkki Thuneberg , Yuriy Makhlin , Pertti Hakonen

We show that it is possible to estimate the shape of an object by measuring only the fluctuations of a probing field, allowing us to expose the object to a minimal light intensity. This scheme, based on noise measurements through homodyne…

Quantum Physics · Physics 2020-01-30 Jeremy B. Clark , Zhifan Zhou , Quentin Glorieux , Alberto M. Marino , Paul D. Lett

The precise theoretical determination of the geometrical parameters of molecules at the minima of their potential energy surface and of the corresponding vibrational properties are of fundamental importance for the interpretation of…

Strongly Correlated Electrons · Physics 2013-06-19 Andrea Zen , Delyan Zhelyazov , Leonardo Guidoni

The structure of the nucleon wave function as a bound system of the constituent quarks was considered in framework of the quasipotential method of description of the bound states with a fixed number of particles. In the impulse…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. P. Ilichova , S. G. Shulga

The hydrogen molecule has become a test ground for quantum electrodynamical calculations in molecules. Expanding beyond studies on stable hydrogenic species to the heavier radioactive tritium-bearing molecules, we report on a measurement of…

Chemical Physics · Physics 2018-04-25 T. Madhu Trivikram , M. Schlösser , W. Ubachs , E. J. Salumbides