118 citations · 252 across the 11 of their papers we have counts for
11 papers
Creating rotational coherences in molecules aligned along the intermediate moment of inertia axis
Emil J. Zak
We propose and computationally study a method for simultaneously orienting the angular momentum of asymmetric top molecules along: 1) a laboratory-fixed direction; 2) the molecular…
Theoretical methods for calculating rotational-vibrational-electronic transition intensities in triatomic molecules
Emil J. Zak
This article covers few selected aspects of quantum theory of molecular rotations and vibrations. Triatomic molecules are the simplest systems, which show qualitative characteristi…
The nuclear-spin-forbidden rovibrational transitions of water from first principles
Andrey Yachmenev, Guang Yang, Emil Zak +2
The water molecule occurs in two nuclear-spin isomers that differ by the value of the total nuclear spin of the hydrogen atoms, i.e., for para-HO and for ortho-H$_2…
Controlling rotation in the molecular-frame with an optical centrifuge
Emil J. Zak, Andrey Yachmenev, Jochen Küpper
We computationally demonstrate a new method for coherently controlling the rotation-axis direction in asymmetric top molecules with an optical centrifuge. Appropriately chosen elec…
Field-induced diastereomers for chiral separation
Andrey Yachmenev, Jolijn Onvlee, Emil Zak +2
A novel approach for the state-specific enantiomeric enrichment and the spatial separation of enantiomers is presented. Our scheme utilizes techniques from strong-field laser physi…
Dynamical semigroups in the Birkhoff polytope of order 3 as a tool for analysis of quantum channels
Mateusz Snamina, Emil J. Zak
In the present paper we show a link between bistochastic quantum channels and classical maps. The primary goal of this work is to analyse the multiplicative structure of the Birkho…
Optimal control theory for rapid-adiabatic passage techniques in inhomogeneous external fields
Emil J. Zak
The present paper reports on results of quantum dynamics calculations for Stark-chirp rapid-adiabatic passage (SCRAP) in two-level systems with electric fields computed with the op…
Simulating electric field interactions with polar molecules using spectroscopic databases
Alec Owens, Emil J. Zak, Katy L. Chubb +3
Ro-vibrational Stark-associated phenomena of small polyatomic molecules are modelled using extensive spectroscopic data generated as part of the ExoMol project. The external field…
Room temperature line lists for CO\2 symmetric isotopologues with \textit{ab initio} computed intensities
Emil J. Zak, Jonathan Tennyson, Oleg L. Polyansky +4
Remote sensing experiments require high-accuracy, preferably sub-percent, line intensities and in response to this need we present computed room temperature line lists for six symm…
A room temperature CO line list with ab initio computed intensities
Emil Zak, Jonathan Tennyson, Oleg L. Polyansky +4
Atmospheric carbon dioxide concentrations are being closely monitored by remote sensing experiments which rely on knowing line intensities with an uncertainty of 0.5% or better. We…
Normal modes. The true story
Emil Zak
The aim of this article is a comprehensive description of normal modes of molecular vibrations. The starting point is chosen to be a general molecular system with separated center…