# Dmitry ChubukovSaint Petersburg State University | SPBU · Department of Quantum Mechanics

Dmitry Chubukov

Doctor of Philosophy

## About

26

Publications

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77

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Introduction

**Skills and Expertise**

## Publications

Publications (26)

It is well-known that the 4-rotation in the 4-dimensional space-time is equivalent to the CPT-transformation (C is the charge conjugation, P is the space inversion and T is the time-reversal). The standard definition of the T-reversal includes the change of the sign of time variable and replacement of the initial state of the particle (system of pa...

It is well-known that the 4-rotation in the 4-dimensional space-time is equivalent to the CPT-transformation (C is the charge conjugation, P is the space inversion and T is the time-reversal). The standard definition of the T-reversal includes the change of the sign of time variable and replacement of the initial state of the particle (system of pa...

Heavy-atom alkaline earth monofluoride molecules are considered as prospective systems to study spatial parity or spatial parity and time-reversal symmetry violating effects such as the nuclear anapole moment or the electron electric dipole moment. A comprehensive and highly accurate theoretical study of the electronic structure properties and tran...

Heavy-atom alkaline earth monofluoride molecules are considered as prospective systems to study spatial parity or spatial parity and time-reversal symmetry violating effects such as the nuclear anapole moment or the electron electric dipole moment. Comprehensive and highly accurate theoretical study of the electronic structure properties and transi...

Possible experiments on the observation of the P,T - odd Faraday effect (rotation of polarization plane for the light, propagating through a medium in the presence of an external electric field, P - is the space inversion, T - is the time reflection) caused by the electron electric dipole moment in atoms and molecules, are discussed theoretically....

The present constraint on the space parity P and time-reflection invariance T violating the electron electric dipole moment (eEDM) is based on the observation of the electron-spin precession in an external electric field using the ThO molecule. We propose an alternative approach: observation of the P,T-odd Faraday effect in an external electric fie...

The photon-spin-dependent (PS) contribution to the ordinary Faraday effect—optical rotation in an external magnetic field $ \overrightarrow {H}$ is well known. This contribution is proportional to factor $\left({ \overrightarrow {s}}_{\mathrm{p}\mathrm{h}}\cdot \overrightarrow {H}\right)$ where ${ \overrightarrow {s}}_{\mathrm{p}\mathrm{h}}$ is the...

The present constraint on the space parity ($\mathcal{P}$) and time reflection invariance ($\mathcal{T}$) violating electron electric dipole moment ($e$EDM) is based on the observation of the electron spin precession in an external electric field using the ThO molecule. We propose an alternative approach: observation of the $\mathcal{P}$,~$\mathcal...

We report a theoretical treatment of the nuclear spin-dependent spatial parity nonconserving (NSD-PNC) electron–nuclear interaction effect in the diatomic homonuclear ortho-H 2 molecule. The magnetic dipole transition between v = 1 and v = 0 vibrational sublevels of the ground 1 Σ g + state is examined. The orthohydrogen molecule is a unique molecu...

It has been proposed to measure the electric dipole moment of the electron on the basis of the observation of the P-, T-odd Faraday effect on a molecular beam intersecting a cavity using cavity-enhanced intracavity laser absorption spectroscopy. The effective electric field acting on the electric dipole moment of the electron, as well as the molecu...

Present limit on the electron electric dipole moment (eEDM) is based on the electron spin precession measurement. We propose an alternative approach - observation of the P,T-odd Faraday effect in an external electric field on atoms and molecules using cavity-enhanced polarimetric scheme in combination with molecular (atomic) beam crossing the cavit...

The P,T-odd Faraday effect (i.e., rotation of the polarization plane of light propagating through a medium in presence of the external electric field due to P, T symmetry violating interactions) is considered for several atomic species: Ra, Pb, Tl, Hg, Cs, and Xe. Corresponding theoretical simulation of P,T-odd Faraday experiment, with already achi...

Accurate evaluation of the P,T-odd Faraday effect (rotation of the polarization plane for the light propagating through a medium in presence of an external electric field) is presented. This effect can arise only due to the P,T-odd (P—space parity, T—time reflection) interactions and is different from the ordinary Faraday effect, i.e., the light po...

Theoretical concepts and calculation results of the spatial parity nonconserving (PNC) effects of electron-electron and electron-nucleus nuclear spin-independent interactions in diatomic homonuclear molecule H2 of parahydrogen are presented. The magnetic dipole transition between the states with the same rotational number of the vibrational band in...

Accurate evaluation of the $\mathcal{P}$,$\mathcal{T}$-odd Faraday effect (rotation of the polarization plane for the light propagating through a medium in presence of an external electric field) is presented. This effect can arise only due to the $\mathcal{P}$,$\mathcal{T}$-odd ($\mathcal{P}$ - space parity, $\mathcal{T}$ - time reflection) intera...

Accurate evaluation of the P,T-odd Faraday effect (rotation of the polarization plane of the light propagating through a medium in the presence of an external electric field) is presented. The magnitude of this rotation is directly proportional to the optical path length. A novel idea is to observe the P,T-odd Faraday effect using intracavity absor...

The feasibility of an experiment for the observation of parity nonconserving effects using Helike highly charged ions in storage rings is discussed theoretically. The basic idea is the observation of an asymmetry in the emission of the hyperfine quenched transition (1s2s)¹S → (1s)²¹S0 + γ with respect to the direction of a beam of ions with polariz...

It is proposed to observe the P,T-odd Faraday effect, i.e., the rotation of the polarization plane of the light propagating through a medium in the presence of an electric field in intracavity absorption spectroscopy experiments. The P,T-odd Faraday effect may be caused by CP violation within the standard model. For this purpose the vapors of heavy...

This paper is devoted to the calculation of parity nonconserving (PNC) effects in the diatomic homonuclear molecule of oxygen O2. For this purpose the magnetic dipole transition bσg⁺ ↔ X³σg⁻was considered. It was believed that the weak electron-electron interaction prevails over the weak interaction of electrons with nuclei in this case. This idea...

It is proposed to employ the P,T-odd Faraday effect, i.e. rotation of the polarization plane of the light propagating through a medium in presence of the electric field, as a tool for observation of P,T-odd effects caused by CP violation within the Standard Model. For this purpose the vapors of heavy atoms like Tl, Pb, Bi are most suitable. Estimat...

Scalar-pseudoscalar P,T-odd interaction between the electron and the nucleus in atomic systems is constructed within the standard model as an exchange by Higgs boson. The necessary P- and T-violating contribution is obtained at the three-loop level on the basis of Cabibbo-Kobayashi-Maskawa matrix. This contribution, unlike the corresponding contrib...

It is demonstrated that the effect of the electric dipole moment of electron and of the P,T-odd electron–nucleus interaction can be well distinguished in the experiments with H-like (or Li-like) highly charged ions in storage rings. These two effects cannot be separated in the experiments with a certain atom or molecule. Possible experiments for th...

The recent experimental results for the upper limit for the electron EDM in heavy diatomic molecules with open electron shells YbF, ThO as well as proposals for the similar measurements in other heavy heteronuclear diatomic molecules are analyzed. It is argued that the enhancement factor for the electron EDM in a molecule, presented as an “effectiv...

Theoretical studies are presented how the electric dipole moment (EDM) of the
electron in H-like ions in electrostatic storage rings can sensitively be
determined. With the proposed experiments a new constraint of about $10^{-29}$
e cm for the electron EDM can be established what is by an order of magnitude
more restrictive than the existing bounds...

## Projects

Project (1)

Special Issue of Symmetry "Development of New Methods in Atomic and Molecular Theory" welcomes contributions describing precision atomic calculations and development of atomic theory. The deadline is 30 November 2020.