Mahya Mohammadi

• Ph.D
• University of Technology Sydney

We study holographic superconductors in a gravity model that a real scalar field coupled to gauge field non-minimally by considering various types of non-minimal coupling function $h(\psi)$ including an exponential, a hyperbolic (cosh), a power-law and a rational function (fractional) coupling forms. We investigate the effect of different values of...

By employing the gauge/gravity duality, we disclose the effects of the non-minimal coupling between the scalar and Maxwell fields on the holographic superconductors in the probe limit. As the background spacetime, we consider a five dimensional Gauss-Bonnet (GB) black hole with a flat horizon. We find out that the critical temperature decreases for...

We disclose the effects of Gauss-Bonnet gravity on the properties of holographic s-wave and p-wave superconductors, with higher-order corrections, in lower-dimensional spacetime. We employ shooting method to solve equations of motion numerically and obtain the effect of different values of mass, nonlinear gauge field and Gauss-Bonnet parameters on...

We study the properties of holographic $s$-wave and $p$-wave superconductors with higher order corrections in Gauss-Bonnet gravity in $3$ and $4$-dimensional space-time. We employ shooting method to solve equations of motion numerically and obtain the effect of different values of mass, nonlinear and Gauss-Bonnet parameters on critical temperature...

We employ gauge/gravity duality to study the effects of Lifshitz scaling on the holographic p-wave super-conductors in the presence of Born-Infeld nonlinear elec-trodynamics. By using the shooting method in the probe limit, we calculate the relation between critical temperature T c and ρ z/d numerically for different values of mass, non-linear para...

We employ gauge/gravity duality to study the effects of Lifshitz scaling on the holographic $p$ wave superconductors in the presence of Born-Infeld (BI) nonlinear electrodynamics. By using the shooting method in the probe limit, we calculate the relation between critical temperature $T_{c}$ and $\rho^{z/d}$ numerically for different values of mass,...

We investigate analytically as well as numerically the effects of nonlinear Born-Infeld electrodynamics on the properties of (1+1)-dimensional holographic p-wave superconductors in the context of gauge-gravity duality. We consider the case in which the gauge and vector fields backreact on the background geometry. We apply the Sturm-Liouville eigenv...

We investigate analytically as well as numerically effects of nonlinear Born-Infeld (BI) electrodynamics on the properties of (1+1)-dimensional holographic $p$-wave superconductor in the context of gauge/gravity duality. We consider the case in which the gauge and vector fields backreact on the background geometry. We apply the Sturm-Liouville eige...

We investigate analytically as well as numerically the effects of nonlinear Born-Infeld (BI) electro-dynamics on the properties of (1 + 1)-dimensional holographic p-wave superconductor in the context of gauge/gravity duality. We consider the case in which the gauge and vector fields backreact on the background geometry. We apply the Sturm-Liouville...

We investigate the holographic p-wave superconductors in the presence of the higher order corrections on the gravity as well as on the gauge field side. On the gravity side, we add the Gauss–Bonnet curvature correction terms, while on the gauge field side we take the nonlinear Lagrangian in the form \({\mathcal {F}}+b {\mathcal {F}}^{2}\), where \(...

We investigate the holographic $p$-wave superconductors in the presence of the higher order corrections on the gravity as well as on the gauge field side. On the gravity side, we add the Gauss-Bonnet curvature correction terms, while on the gauge field side we take the nonlinear Lagrangian in the form $F + b F^2$, where F is the Maxwell Lagrangian...

We investigate the holographic p-wave superconductors in the presence of the higher order corrections on the gravity as well as on the gauge field side. On the gravity side, we add the Gauss-Bonnet curvature correction terms, while on the gauge field side we take the nonlinear Lagrangian in the form F + bF^2 , where F is the Maxwell Lagrangian and...

We analytically as well as numerically study the properties of one-dimensional holographic p- wave superconductors in the presence of backreaction. We employ the Sturm-Liouville eigenvalue problem for the analytical calculation and the shooting method for the numerical investigations. We apply the AdS3/CFT2 correspondence and determine the relation...

We analytically and numerically study the properties of one-dimensional holographic p-wave superconductors in the presence of backreaction. We employ the Sturm–Liouville eigenvalue problem for the analytical calculation and the shooting method for the numerical investigations. We apply the \(\hbox {AdS}_{{3}}\)/\(\hbox {CFT}_{{2}}\) correspondence...

We analytically as well as numerically study the effects of Born–Infeld nonlinear electrodynamics on the properties of \((1+1)\)-dimensional s-wave holographic superconductors. We relax the probe limit and further assume the scalar and gauge fields to affect the background spacetime. We thus explore the effects of backreaction on the condensation o...

We analytically as well as numerically study the effects of Born-Infeld nonlinear electrodynamics on the properties of $(1+1)$-dimensional $s$-wave holographic superconductors. We relax the probe limit and further assume the scalar and gauge fields affect on the background spacetime. We thus explore the effects of backreaction on the condensation o...

In this essay, photometric results of eclipsing binary star V523 Cas in four Johnson filters U, B, V and R have been presented. After data reduction, light curves analyzed with Phoebe software. Finally physical and relative geometrical parameters of this system in different filters are determined.

Apodization functions produce an instrumental line shape (ILS) that the sidelobe of them is less than the sinc function. A simple method to achieve the required spatial range is adjusting the shape of telescope aperture transmission that the light intensity in a large area around the star's image can be reduced to almost zero. According to this app...