Development of accurate anharmonic vibrational state theory using a novel vibrational coordinate based on backflow transformation

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vibrational structure theory: new vibrational wave function methods for calculation of anharmonic vibrational energies and vibrational contributions to molecular properties.

A number of recently developed theoretical methods for the calculation of vibrational energies and wave functions are reviewed. Methods for constructing the appropriate quantum mechanical Hamilton operator are briefly described before reviewing a particular branch of theoretical methods for solving the nuclear Schrödinger equation. The main focus is on wave function methods using the vibrationa...

متن کامل

Vibrational Calculations for the HD2 First-Excited Electronic State Using a Coordinate-Transformation Technique†

We report calculations of the vibrational spectrum of HD2 in its first-excited electronic state by using a coordinate-transformation technique. The implications of the geometric phase (GP) effect in the spectrum have been investigated. The results show that the lowest 45 vibrational levels calculated using the traditional Longuet-Higgins phase (φ/2, where φ is the pseudorotation angle) are in g...

متن کامل

Anharmonic Vibrational Properties from Intrinsic n‐Mode State Densities

A method for calculating fully anharmonic vibrational state counts, state densities, and partition functions for molecules is presented. The method makes use of a new quantity, the intrinsic density of states, which is associated with the states that uniquely arise from a given mode, mode pairing, or higher-order mode coupling. By using only low-order intrinsic densities, the fully coupled anha...

متن کامل

Anharmonic properties of the vibrational quantum computer.

We developed an efficient approach to study the coherent control of vibrational state-to-state transitions. The approximations employed in our model are valid in the regime of the low vibrational excitation specific to the vibrational quantum computer. Using this approach we explored how the vibrational properties of a two-qubit system affect the accuracy of subpicosecond quantum gates. The opt...

متن کامل

Vibrational Distribution Functions in Anharmonic Oscillators

A model has been developed to calculate the steady state vibrational distribution of an anharmonic oscillator under conditions of thermal nonequilibrium. The model includes vibration-vibration and vibrationtranslation collisional processes as well as radiative decay. Numerical calculations are shown to be in reasonably good agreement with experimental data obtained in electrically excited N^-CO...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics: Conference Series

سال: 2020

ISSN: 1742-6588,1742-6596

DOI: 10.1088/1742-6596/1412/14/142013