Binding energy and decaytime of exciton in dielectric medium

Guvendi, Abdullah; Şahin, Ramazan; Sucu, Yusuf

doi:10.1140/epjb/s10051-020-00030-6

Cited by 20 publications

(12 citation statements)

References 50 publications

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“…According to signature of eq. (2) the space-independent dirac matrices can be chosen as = , = , = [29][30][31], in which , and are the pauli spin matrices. Also, we can obtain the spinorial connections for spin-1/2 fields via the following expression [15], ( ,σ,μ,ν,a,b=0,1,2.…”

Section: Generalized Form Of Thementioning

confidence: 99%

Effects of Rotating Frame on a Vector Boson Oscillator

Guvendi

2021

Sakarya University Journal of Science

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We analyze the effects of the spacetime topology and angular velocity of rotating frame on the dynamics of a relativistic vector boson oscillator ( ). To determine these effects on the energy of the we solve the corresponding vector boson equation in the rotating frame of 2+1 dimensional cosmic string-induced spacetime background. We obtain an exact energy spectrum, which depends on the angular velocity of the rotating frame and angular deficit parameter of the background. We show that the effects of angular deficit parameter on each energy level of the cannot be same and the angular velocity of the rotating frame couples with the spin of the . Furthermore, we have obtained that the angular velocity of rotating frame breaks the symmetry of the positive-negative energy states.

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Section: Generalized Form Of Thementioning

confidence: 99%

Effects of Rotating Frame on a Vector Boson Oscillator

Guvendi

2021

Sakarya University Journal of Science

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“…In the relativistic quantum theory, the history of such equations goes long way back [43,44] but there are still different relativistic manybody equations in use today in the literature [43][44][45][46][47][48]. In this study, we will use the corresponding form of a fully-covariant two-body Dirac equation (FCTBE) [9,[48][49][50][51][52][53][54], derived from quantum electrodynamics (QED) with the help of action principle [47], in order to obtain relativistic Landau levels for a composite system formed by a fermion-antifermion (ff) pair interacting via DO coupling. The FCTBE is a one-time equation including the most general electric and magnetic potentials [48][49][50][51][52][53][54].…”

Section: Introductionmentioning

confidence: 99%

“…In this study, we will use the corresponding form of a fully-covariant two-body Dirac equation (FCTBE) [9,[48][49][50][51][52][53][54], derived from quantum electrodynamics (QED) with the help of action principle [47], in order to obtain relativistic Landau levels for a composite system formed by a fermion-antifermion (ff) pair interacting via DO coupling. The FCTBE is a one-time equation including the most general electric and magnetic potentials [48][49][50][51][52][53][54]. This equation leads a 16 × 16 matrix equation in 4-dimensions [52][53][54] and the separation of angular and radial variables requires group theoretical methods [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

“…It has been announced that the well-known energy spectrum for one-electron atoms or some ff systems can be obtained via perturbative solution of the FCTBE [9,[52][53][54] in 4-dimensions. Recently, it has been shown that the FCTBE can be exactly solvable for low dimensional systems [48] and some systems that have dynamical symmetries [49][50][51], without considering any group theoretical method. The FCTBE has been used to describe the dynamics of an exciton (electron-hole pair) in a monolayer free standing medium and the lifetime of the exciton has been obtained simultaneously besides its binding energy [48].…”

Section: Introductionmentioning

confidence: 99%

“…The FCTBE has been used to describe the dynamics of an exciton (electron-hole pair) in a monolayer free standing medium and the lifetime of the exciton has been obtained simultaneously besides its binding energy [48]. Moreover, this equation has been solved exactly for an electron-hole pair that they interact via attractive Coulomb potential in a monolayer dielectric medium and the results show that, in principle, one can actively tune both binding energy and decaytime of an exciton during photo-excitation experiments by adjusting the dielectric substrates [51]. The FCTBE is also appropriate to study in curved spacetime backgrounds.…”

Section: Introductionmentioning

confidence: 99%

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Relativistic Landau levels for a fermion-antifermion pair interacting through Dirac oscillator interaction

Guvendi¹

2021

Eur. Phys. J. C

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We introduce a unique model for a fermion-antifermion pair interacting via Dirac oscillator coupling in the presence of an external uniform magnetic field. This model is based on an exact solution of the corresponding form of a fully-covariant two-body Dirac equation (one-time). The dynamic symmetry of the system allows to study in $$2+1$$ 2 + 1 dimensions and we choose the interaction of the particles with the external uniform magnetic field in the symmetric gauge. The corresponding equation leads $$4\times 4$$ 4 × 4 dimensional matrix equation for such a static composite system. For spin antisymmetric state of the fermion-antifermion pair, we perform an exact solution of the matrix equation and obtain relativistic Landau levels of a fermion-antifermion pair interacting via Dirac oscillator coupling. The results show that such a composite system behaves like a single relativistic quantum oscillator carrying total rest mass of the particles. We discuss several interesting features of this system and show that the obtained energy spectrum agrees well with the previously announced results for one-body systems. We think that the introduced model in this manuscript has a great potential for many theoretical and experimental applications.

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Relativistic Vector Bosons with Non-minimal Coupling in the Spinning Cosmic String Spacetime

Guvendi¹,

Hassanabadi

2021

Few-Body Syst

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Binding energy and decaytime of exciton in dielectric medium

Cited by 20 publications

References 50 publications

Effects of Rotating Frame on a Vector Boson Oscillator

Effects of Rotating Frame on a Vector Boson Oscillator

Relativistic Landau levels for a fermion-antifermion pair interacting through Dirac oscillator interaction

Relativistic Vector Bosons with Non-minimal Coupling in the Spinning Cosmic String Spacetime

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